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Apollo 11
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This article is about the 1969 manned lunar mission. For other uses, see Apollo 11 (disambiguation).
Apollo 11
Neil Armstrong descends a ladder to become the first human to step onto the surface of the Moon
Mission type
Manned lunar landing
Operator
NASA[1]
COSPAR ID
CSM: 1969-059A
LM: 1969-059C
SATCAT no.
CSM: 4039
LM: 4041
Mission duration
8 days, 3 hours, 18 minutes, 35 seconds
Spacecraft properties
Spacecraft
Apollo CSM-107
Apollo LM-5
Manufacturer
CSM: North American Rockwell
LM: Grumman
Launch mass
100,756 pounds (45,702 kg)
Landing mass
10,873 pounds (4,932 kg)
Crew
Crew size
3
Members
Neil A. Armstrong
Michael Collins
Edwin E. "Buzz" Aldrin, Jr.
Callsign
CSM: Columbia
LM: Eagle
On surface: Tranquility Base
Start of mission
Launch date
July 16, 1969, 13:32:00 (1969-07-16UTC13:32Z) UTC
Rocket
Saturn V SA-506
Launch site
Kennedy LC-39A
End of mission
Recovered by
USS Hornet
Landing date
July 24, 1969, 16:50:35 (1969-07-24UTC16:50:36Z) UTC[2]
Landing site
North Pacific Ocean
13°19′N 169°9′W / 13.317°N 169.150°W / 13.317; -169.150 (Apollo 11 splashdown)[2]
Orbital parameters
Reference system
Selenocentric
Periselene
100.9 kilometers (54.5 nmi)[3]
Aposelene
122.4 kilometers (66.1 nmi)[3]
Inclination
1.25 degrees[3]
Period
2 hours[3]
Epoch
July 19, 1969, 21:44 UTC[3]
Lunar orbiter
Spacecraft component
Command/Service Module
Orbital insertion
July 19, 1969, 17:21:50 UTC[4]
Orbital departure
July 22, 1969, 04:55:42 UTC[4]
Orbits
30
Lunar lander
Spacecraft component
Lunar Module
Landing date
July 20, 1969, 20:18:04 UTC[5]
Return launch
July 21, 1969, 17:54 UTC
Landing site
Mare Tranquillitatis
0°40′27″N 23°28′23″E / 0.67408°N 23.47297°E / 0.67408; 23.47297[6]
Sample mass
21.55 kilograms (47.51 lb)
Surface EVAs
1
EVA duration
2 hours, 31 minutes 40 seconds
Docking with LM
Docking date
July 16, 1969, 16:56:03 UTC[4]
Undocking date
July 20, 1969, 17:44:00 UTC[4]
Docking with LM ascent stage
Docking date
July 21, 1969, 21:35:00 UTC[4]
Undocking date
July 21, 1969, 23:41:31 UTC[4]

Left to right: Armstrong, Collins, Aldrin
Apollo program
← Apollo 10
Apollo 12 →
Apollo 11 was the spaceflight that landed the first two humans on the Moon. Mission commander Neil Armstrong and pilot Buzz Aldrin, both American, landed the lunar module Eagle on July 20, 1969, at 20:18 UTC. Armstrong became the first to step onto the lunar surface six hours after landing on July 21 at 02:56:15 UTC; Aldrin joined him about 20 minutes later. They spent about two and a quarter hours together outside the spacecraft, and collected 47.5 pounds (21.5 kg) of lunar material to bring back to Earth. Michael Collins piloted the command module Columbia alone in lunar orbit while they were on the Moon's surface. Armstrong and Aldrin spent just under a day on the lunar surface before rejoining Columbia in lunar orbit.
Apollo 11 was launched by a Saturn V rocket from Kennedy Space Center in Merritt Island, Florida, on July 16 at 9:32 am EDT (13:32 UTC) and was the fifth manned mission of NASA's Apollo program. The Apollo spacecraft had three parts: a command module (CM) with a cabin for the three astronauts, and the only part that landed back on Earth; a service module (SM), which supported the command module with propulsion, electrical power, oxygen, and water; and a lunar module (LM) that had two stages – a lower stage for landing on the Moon, and an upper stage to place the astronauts back into lunar orbit.
After being sent toward the Moon by the Saturn V's upper stage, the astronauts separated the spacecraft from it and traveled for three days until they entered into lunar orbit. Armstrong and Aldrin then moved into the lunar module Eagle and landed in the Sea of Tranquility. They stayed a total of about 21.5 hours on the lunar surface. The astronauts used Eagle's upper stage to lift off from the lunar surface and rejoin Collins in the command module. They jettisoned Eagle before they performed the maneuvers that blasted them out of lunar orbit on a trajectory back to Earth. They returned to Earth and landed in the Pacific Ocean on July 24.
The landing was broadcast on live TV to a worldwide audience. Armstrong stepped onto the lunar surface and described the event as "one small step for [a] man, one giant leap for mankind." Apollo 11 effectively ended the Space Race and fulfilled a national goal proposed in 1961 by U.S. President John F. Kennedy: "before this decade is out, of landing a man on the Moon and returning him safely to the Earth."[7]
Contents
[hide]
1 Framework
1.1 Crew
1.2 Backup crew
1.3 Support crew
1.4 Flight directors
1.5 Call signs
1.6 Insignia
1.7 Mementos
2 Mission highlights
2.1 Launch and flight to lunar orbit
2.2 Lunar descent
2.3 Landing
2.4 Lunar surface operations
2.5 Lunar ascent and return
2.6 Splashdown and quarantine
2.7 Celebration
3 Moon race
4 Spacecraft location
5 40th anniversary events
6 Gallery
7 See also
8 Notes
9 References
10 Further reading
11 External links
Framework
Crew
Position
Astronaut
Commander
Neil A. Armstrong
Second spaceflight
Command Module Pilot
Michael Collins
Second spaceflight
Lunar Module Pilot
Edwin "Buzz" E. Aldrin, Jr.
Second spaceflight
Apollo 11 was the second all-veteran multi-person crew (the first being Apollo 10) in human spaceflight history.[8] A previous solo veteran flight had been made on Soyuz 1 in 1967 by Soviet cosmonaut Vladimir Komarov.[9]
Collins was originally slated to be the Command Module Pilot (CMP) on Apollo 8 but was removed when he required surgery on his back and was replaced by Jim Lovell, his backup for that flight. After Collins was medically cleared, he took what would have been Lovell's spot on Apollo 11; as a veteran of Apollo 8, Lovell was transferred to Apollo 11's backup crew and promoted to backup commander.
Backup crew
Position
Astronaut
Commander
James A. Lovell, Jr.
Command Module Pilot
William A. Anders
Lunar Module Pilot
Fred W. Haise, Jr.
In early 1969, Anders accepted a job with the National Space Council effective August 1969 and announced that he would retire as an astronaut on that date. At that point Ken Mattingly was moved from the support crew into parallel training with Anders as backup Command Module Pilot in case Apollo 11 was delayed past its intended July launch (at which point Anders would be unavailable if needed) and would later join Lovell's crew and ultimately be assigned as the original Apollo 13 CMP.[10]
Support crew
Charlie Duke, Capsule Communicator (CAPCOM)
Ronald Evans (CAPCOM)
Owen K. Garriott (CAPCOM)
Don L. Lind (CAPCOM)
Ken Mattingly (CAPCOM)
Bruce McCandless II (CAPCOM)
Harrison Schmitt (CAPCOM)
Bill Pogue
Jack Swigert
William Carpentier (SURGEON)
Flight directors
Cliff Charlesworth (Green Team), launch and EVA
Gene Kranz (White Team), lunar landing
Glynn Lunney (Black Team), lunar ascent
Call signs
Apollo 11 Command/Service Module Columbia in lunar orbit, photographed from the Lunar Module Eagle
After the crew of Apollo 10 named their spacecraft Charlie Brown and Snoopy, assistant manager for public affairs Julian Scheer wrote to Manned Spacecraft Center director George M. Low to suggest the Apollo 11 crew be less flippant in naming their craft. During early mission planning, the names Snowcone and Haystack were used and put in the news release,[11] but the crew later decided to change them.
The Command Module was named Columbia after the Columbiad, the giant cannon shell "spacecraft" fired by a giant cannon (also from Florida) in Jules Verne's 1865 novel From the Earth to the Moon.[12] The Lunar Module was named Eagle for the national bird of the United States, the bald eagle, which is featured prominently on the mission insignia.
Insignia
Apollo 11 space-flown silver Robbins medallion
The Apollo 11 mission insignia was designed by Collins, who wanted a symbol for "peaceful lunar landing by the United States". He chose an eagle as the symbol, put an olive branch in its beak, and drew a lunar background with the Earth in the distance. NASA officials said the talons of the eagle looked too "warlike" and after some discussion, the olive branch was moved to the claws. The crew decided the Roman numeral XI would not be understood in some nations and went with "Apollo 11"; they decided not to put their names on the patch, so it would "be representative of everyone who had worked toward a lunar landing".[13] All colors are natural, with blue and gold borders around the patch.
When the Eisenhower dollar coin was released in 1971, the patch design provided the eagle for its reverse side.[14] The design was also used for the smaller Susan B. Anthony dollar unveiled in 1979, ten years after the Apollo 11 mission.[15]
Mementos
Neil Armstrong's personal preference kit carried a piece of wood from the Wright brothers' 1903 airplane's left propeller and a piece of fabric from its wing,[16] along with a diamond-studded astronaut pin originally given to Deke Slayton by the widows of the Apollo 1 crew. This pin had been intended to be flown on Apollo 1 and given to Slayton after the mission but following the disastrous launch pad fire and subsequent funerals, the widows gave the pin to Slayton and Armstrong took it on Apollo 11.[17]
Mission highlights
Launch and flight to lunar orbit
Saturn V carrying Apollo 11 rises past the launch tower camera
Earth seen from Apollo 11 just after leaving Earth orbit (translunar injection)
Play media
Taping at 500 fps of the engine ignition at launch
In addition to many people crowding highways and beaches near the launch site, millions watched the event on television, with NASA Chief of Public Information Jack King providing commentary. President Richard M. Nixon viewed the proceedings from the Oval Office of the White House.
A Saturn V launched Apollo 11 from Launch Pad 39A, part of the Launch Complex 39 site at the Kennedy Space Center on July 16, 1969, at 13:32:00 UTC (9:32:00 a.m. EDT local time). It entered Earth orbit, at an altitude of 100.4 nautical miles (185.9 km) by 98.9 nautical miles (183.2 km), twelve minutes later.[1] After one and a half orbits, the S-IVB third-stage engine pushed the spacecraft onto its trajectory toward the Moon with the trans-lunar injection (TLI) burn at 16:22:13 UTC. About 30 minutes later, the transposition, docking, and extraction maneuver was performed: this involved separating the Apollo Command/Service Module (CSM) from the spent rocket stage, turning around, and docking with the Lunar Module still attached to the stage. After the Lunar Module was extracted, the combined spacecraft headed for the Moon, while the rocket stage flew on a trajectory past the Moon and into orbit around the Sun.[4]
On July 19 at 17:21:50 UTC, Apollo 11 passed behind the Moon and fired its service propulsion engine to enter lunar orbit. In the thirty orbits[18] that followed, the crew saw passing views of their landing site in the southern Sea of Tranquility (Mare Tranquillitatis) about 12 miles (19 km) southwest of the crater Sabine D (0.67408N, 23.47297E). The landing site was selected in part because it had been characterized as relatively flat and smooth by the automated Ranger 8 and Surveyor 5 landers along with the Lunar Orbiter mapping spacecraft and unlikely to present major landing or extravehicular activity (EVA) challenges.[19]
Lunar descent
The Eagle in lunar orbit after separating from Columbia
CAPCOM Charles Duke, with backup pilots James Lovell and Fred Haise listening in during Apollo 11's descent
On July 20, 1969, the Lunar Module Eagle separated from the Command Module Columbia. Collins, alone aboard Columbia, inspected Eagle as it pirouetted before him to ensure the craft was not damaged.
As the descent began, Armstrong and Aldrin found that they were passing landmarks on the surface four seconds early and reported that they were "long"; they would land miles west of their target point.
Five minutes into the descent burn, and 6,000 feet (1,800 m) above the surface of the Moon, the LM navigation and guidance computer distracted the crew with the first of several unexpected "1202" and "1201" program alarms. Inside Mission Control Center in Houston, Texas, computer engineer Jack Garman told guidance officer Steve Bales it was safe to continue the descent, and this was relayed to the crew. The program alarms indicated "executive overflows", meaning the guidance computer could not complete all of its tasks in real time and had to postpone some of them.[20]
Due to an error in the checklist manual, the rendezvous radar switch was placed in the wrong position. This caused it to send erroneous signals to the computer. The result was that the computer was being asked to perform all of its normal functions for landing while receiving an extra load of spurious data which used up 15% of its time. The computer (or rather the software in it) was smart enough to recognize that it was being asked to perform more tasks than it should be performing. It then sent out an alarm, which meant to the astronaut, I'm overloaded with more tasks than I should be doing at this time and I'm going to keep only the more important tasks; i.e., the ones needed for landing ... Actually, the computer was programmed to do more than recognize error conditions. A complete set of recovery programs was incorporated into the software. The software's action, in this case, was to eliminate lower priority tasks and re-establish the more important ones ... If the computer hadn't recognized this problem and taken recovery action, I doubt if Apollo 11 would have been the successful moon landing it was.[21][a]
—  Letter from Margaret H. Hamilton, Director of Apollo Flight Computer Programming MIT Draper Laboratory, Cambridge, Massachusetts[25], titled "Computer Got Loaded", published in Datamation, March 1, 1971
Landing
Play media
Landing on the Moon, July 20, 1969
Landing site of Apollo 11 at Sea of Tranquility
Play media
The Apollo 11 landing site visualized in three dimensions using photography and a stereo digital elevation model from the LRO camera.
When Armstrong again looked outside, he saw that the computer's landing target was in a boulder-strewn area just north and east of a 300-meter (980 ft) diameter crater (later determined to be West crater, named for its location in the western part of the originally planned landing ellipse). Armstrong took semi-automatic control[26] and, with Aldrin calling out altitude and velocity data, landed at 20:17:40 UTC on Sunday July 20 with about 25 seconds of fuel left.[5]
Apollo 11 landed with less fuel than other missions, and the astronauts encountered a premature low fuel warning. This was later found to be the result of greater propellant 'slosh' than expected, uncovering a fuel sensor. On subsequent missions, extra anti-slosh baffles were added to the tanks to prevent this.[5]
Throughout the descent, Aldrin had called out navigation data to Armstrong, who was busy piloting the LM. A few moments before the landing, a light informed Aldrin that at least one of the 67-inch (170 cm) probes hanging from Eagle's footpads had touched the surface, and he said: "Contact light!" Three seconds later, Eagle landed and Armstrong said "Shutdown." Aldrin immediately said "Okay, engine stop. ACA – out of detent." Armstrong acknowledged "Out of detent. Auto" and Aldrin continued "Mode control – both auto. Descent engine command override off. Engine arm – off. 413 is in."
Charles Duke, CAPCOM during the landing phase, acknowledged their landing by saying "We copy you down, Eagle."
Armstrong acknowledged Aldrin's completion of the post landing checklist with "Engine arm is off", before responding to Duke with the words, "Houston, Tranquility Base here. The Eagle has landed." Armstrong's unrehearsed[27] change of call sign from "Eagle" to "Tranquility Base" emphasized to listeners that landing was complete and successful. Duke mispronounced his reply as he expressed the relief at Mission Control: "Roger, Twan— Tranquility, we copy you on the ground. You got a bunch of guys about to turn blue. We're breathing again. Thanks a lot."[5][28]
Two and a half hours after landing, before preparations began for the EVA, Aldrin radioed to Earth:
This is the LM pilot. I'd like to take this opportunity to ask every person listening in, whoever and wherever they may be, to pause for a moment and contemplate the events of the past few hours and to give thanks in his or her own way.[29]
He then took communion privately. At this time NASA was still fighting a lawsuit brought by atheist Madalyn Murray O'Hair (who had objected to the Apollo 8 crew reading from the Book of Genesis) demanding that their astronauts refrain from broadcasting religious activities while in space. As such, Aldrin chose to refrain from directly mentioning taking communion on the Moon. Aldrin was an elder at the Webster Presbyterian Church, and his communion kit was prepared by the pastor of the church, the Rev. Dean Woodruff. Aldrin described communion on the Moon and the involvement of his church and pastor in the October 1970 edition of Guideposts magazine and in his book Return to Earth. Webster Presbyterian possesses the chalice used on the Moon and commemorates the event each year on the Sunday closest to July 20.[30]
The schedule for the mission called for the astronauts to follow the landing with a five-hour sleep period as they had been awake since early morning. However, they elected to forgo the sleep period and begin the preparations for the EVA early, thinking that they would be unable to sleep.
Lunar surface operations
See also: First Moon walk
A mounted slowscan TV camera showing Armstrong as he climbs down the ladder to surface
A photograph of Armstrong near the LM, taken by Aldrin on the lunar surface; most of the time Armstrong had the camera.
The astronauts planned placement of the Early Apollo Scientific Experiment Package (EASEP)[31] and the U.S. flag by studying their landing site through Eagle's twin triangular windows, which gave them a 60° field of view. Preparation required longer than the two hours scheduled. Armstrong initially had some difficulties squeezing through the hatch with his Portable Life Support System (PLSS). According to veteran Moon-walker John Young, a redesign of the LM to incorporate a smaller hatch had not been followed by a redesign of the PLSS backpack, so some of the highest heart rates recorded from Apollo astronauts occurred during LM egress and ingress.[32][33]
Several books indicate early mission timelines had Buzz Aldrin rather than Neil Armstrong as the first man on the Moon.[34]
At 02:39 UTC on Monday July 21, 1969, Armstrong opened the hatch, and at 02:51 UTC began his descent to the lunar surface. The Remote Control Unit controls on his chest kept him from seeing his feet. Climbing down the nine-rung ladder, Armstrong pulled a D-ring to deploy the Modular Equipment Stowage Assembly (MESA) folded against Eagle's side and activate the TV camera, and at 02:56:15 UTC he set his left foot on the surface.[35][36] The first landing used slow-scan television incompatible with commercial TV, so it was displayed on a special monitor and a conventional TV camera viewed this monitor, significantly reducing the quality of the picture.[37] The signal was received at Goldstone in the United States but with better fidelity by Honeysuckle Creek Tracking Station in Australia. Minutes later the feed was switched to the more sensitive Parkes radio telescope in Australia.[38] Despite some technical and weather difficulties, ghostly black and white images of the first lunar EVA were received and broadcast to at least 600 million people on Earth.[39] Although copies of this video in broadcast format were saved and are widely available, recordings of the original slow scan source transmission from the lunar surface were accidentally destroyed during routine magnetic tape re-use at NASA.
The plaque left on the ladder of Eagle
While still on the ladder, Armstrong uncovered a plaque mounted on the LM Descent Stage bearing two drawings of Earth (of the Western and Eastern Hemispheres), an inscription, and signatures of the astronauts and President Nixon. The inscription read:
Here men from the planet Earth first set foot upon the Moon, July 1969 A.D. We came in peace for all mankind.
After describing the surface dust as "very fine-grained" and "almost like a powder,"[36] six and a half hours after landing,[1] Armstrong stepped off Eagle's footpad and declared, "That's one small step for [a] man, one giant leap for mankind."[b][40][41][42][43]
Armstrong intended to say "That's one small step for a man", but the word "a" is not audible in the transmission, and thus was not initially reported by most observers of the live broadcast. When later asked about his quote, Armstrong said he believed he said "for a man", and subsequent printed versions of the quote included the "a" in square brackets. One explanation for the absence may be that his accent caused him to slur the words "for a" together; another is the intermittent nature of the audio and video links to Earth, partly because of storms near Parkes Observatory. More recent digital analysis of the tape claims to reveal the "a" may have been spoken but obscured by static.[44][45]
That's one small step ...
Problems playing this file? See media help.
About seven minutes after stepping onto the Moon's surface, Armstrong collected a contingency soil sample using a sample bag on a stick. He then folded the bag and tucked it into a pocket on his right thigh. This was to guarantee there would be some lunar soil brought back in case an emergency required the astronauts to abandon the EVA and return to the LM.[46]
Twelve minutes after the contingency sample was collected,[1] Aldrin joined Armstrong on the surface, and described the view with the simple phrase, "Magnificent desolation."[36]
Aldrin poses on the Moon, allowing Armstrong to photograph both of them using the visor's reflection
In addition to fulfilling President Kennedy's mandate to land a man on the Moon before the end of the 1960s,[47] Apollo 11 was an engineering test of the Apollo system; therefore, Armstrong snapped photos of the LM so engineers would be able to judge its post-landing condition. He removed the TV camera from the MESA and made a panoramic sweep, then mounted it on a tripod 68 feet (21 m) from the LM. The TV camera cable remained partly coiled and presented a tripping hazard throughout the EVA.
Armstrong said that moving in the lunar gravity, one-sixth of Earth's, was "even perhaps easier than the simulations ... It's absolutely no trouble to walk around."[36] Aldrin joined him on the surface and tested methods for moving around, including two-footed kangaroo hops. The PLSS backpack created a tendency to tip backwards, but neither astronaut had serious problems maintaining balance. Loping became the preferred method of movement. The astronauts reported that they needed to plan their movements six or seven steps ahead. The fine soil was quite slippery. Aldrin remarked that moving from sunlight into Eagle's shadow produced no temperature change inside the suit, though the helmet was warmer in sunlight, so he felt cooler in shadow.[36]
The astronauts planted a specially designed U.S. flag on the lunar surface, in clear view of the TV camera. Some time later, President Richard Nixon spoke to them through a telephone-radio transmission which Nixon called "the most historic phone call ever made from the White House."[48] Nixon originally had a long speech prepared to read during the phone call, but Frank Borman, who was at the White House as a NASA liaison during Apollo 11, convinced Nixon to keep his words brief, to respect the lunar landing as Kennedy's legacy.[49] Armstrong thanked the President, and gave a brief reflection on the significance of the moment:
President Nixon speaks to Armstrong and Aldrin on the Moon
Nixon: Hello, Neil and Buzz. I'm talking to you by telephone from the Oval Room at the White House. And this certainly has to be the most historic telephone call ever made. I just can't tell you how proud we all are of what you've done. For every American, this has to be the proudest day of our lives. And for people all over the world, I am sure they too join with Americans in recognizing what an immense feat this is. Because of what you have done, the heavens have become a part of man's world. And as you talk to us from the Sea of Tranquility, it inspires us to redouble our efforts to bring peace and tranquility to Earth. For one priceless moment in the whole history of man, all the people on this Earth are truly one: one in their pride in what you have done, and one in our prayers that you will return safely to Earth.
Armstrong: Thank you, Mr. President. It's a great honor and privilege for us to be here, representing not only the United States, but men of peace of all nations, and with interest and curiosity, and men with a vision for the future. It's an honor for us to be able to participate here today.
Aldrin bootprint; part of an experiment to test the properties of the lunar regolith
The MESA failed to provide a stable work platform and was in shadow, slowing work somewhat. As they worked, the moonwalkers kicked up gray dust which soiled the outer part of their suits, the integrated thermal meteoroid garment.
They deployed the EASEP, which included a passive seismograph and a Lunar Ranging Retroreflector (LRRR). Then Armstrong walked 196 feet (60 m) from the LM to snap photos at the rim of Little West Crater while Aldrin collected two core tubes. He used the geological hammer to pound in the tubes – the only time the hammer was used on Apollo 11. The astronauts then collected rock samples using scoops and tongs on extension handles. Many of the surface activities took longer than expected, so they had to stop documenting sample collection halfway through the allotted 34 minutes.
Map showing landing site and photos taken
Three new minerals were discovered in the rock samples collected by the astronauts: armalcolite, tranquillityite, and pyroxferroite. Armalcolite was named after Armstrong, Aldrin, and Collins.
During this period, Mission Control used a coded phrase to warn Armstrong that his metabolic rates were high and that he should slow down. He was moving rapidly from task to task as time ran out. However, as metabolic rates remained generally lower than expected for both astronauts throughout the walk, Mission Control granted the astronauts a 15-minute extension.[50] In a 2010 interview, Armstrong, who had walked a maximum of 196 feet (60 m) from the LM, explained that NASA limited the first moonwalk's time and distance because there was no empirical proof of how much cooling water the astronauts' PLSS backpacks would consume to handle their body heat generation while working on the Moon.[51]
Lunar ascent and return
Aldrin next to the Passive Seismic Experiment Package with Eagle in the background
Aldrin entered Eagle first. With some difficulty the astronauts lifted film and two sample boxes containing 21.55 kilograms (47.5 lb) of lunar surface material to the LM hatch using a flat cable pulley device called the Lunar Equipment Conveyor. Armstrong reminded Aldrin of a bag of memorial items in his suit pocket sleeve, and Aldrin tossed the bag down; Armstrong then jumped to the ladder's third rung and climbed into the LM. After transferring to LM life support, the explorers lightened the ascent stage for return to lunar orbit by tossing out their PLSS backpacks, lunar overshoes, one Hasselblad camera, and other equipment. They then pressurized the LM and settled down to sleep.[52]
Wikisource has original text related to this article:
In Event of Moon Disaster
President Nixon's speech writer William Safire had prepared In Event of Moon Disaster for the President to read on television in the event the Apollo 11 astronauts were stranded on the Moon.[53] The contingency plan originated in a memo from Safire to Nixon's White House Chief of Staff H. R. Haldeman, in which Safire suggested a protocol the administration might follow in reaction to such a disaster.[54][55] According to the plan, Mission Control would "close down communications" with the LM, and a clergyman would "commend their souls to the deepest of the deep" in a public ritual likened to burial at sea. The last line of the prepared text contained an allusion to Rupert Brooke's First World War poem, "The Soldier".[55] The plan included presidential telephone calls to the astronauts' wives.
While moving within the cabin, Aldrin accidentally damaged the circuit breaker that would arm the main engine for lift off from the Moon. There was concern this would prevent firing the engine, stranding them on the Moon. Fortunately, a felt-tip pen was sufficient to activate the switch.[52] Had this not worked, the Lunar Module circuitry could have been reconfigured to allow firing the ascent engine.[56]
After about seven hours of rest, the crew was awakened by Houston to prepare for the return flight. Two and a half hours later, at 17:54 UTC, they lifted off in Eagle's ascent stage to rejoin Collins aboard Columbia in lunar orbit.
After more than 21½ total hours on the lunar surface, they had left behind scientific instruments that included a retroreflector array used for the Lunar Laser Ranging Experiment and a Passive Seismic Experiment Package used to measure moonquakes. They also left an Apollo 1 mission patch, and a memorial bag containing a gold replica of an olive branch as a traditional symbol of peace and a silicon message disk. The disk carries the goodwill statements by Presidents Eisenhower, Kennedy, Johnson, and Nixon and messages from leaders of 73 countries around the world. The disc also carries a listing of the leadership of the US Congress, a listing of members of the four committees of the House and Senate responsible for the NASA legislation, and the names of NASA's past and present top management.[57] (In his 1989 book, Men from Earth, Aldrin says that the items included Soviet medals commemorating Cosmonauts Vladimir Komarov and Yuri Gagarin.) Also, according to Deke Slayton's book Moonshot, Armstrong carried with him a special diamond-studded astronaut pin from Slayton.
Eagle's ascent stage approaching Columbia
Film taken from the LM Ascent Stage upon liftoff from the Moon reveals the American flag, planted some 25 feet (8 m) from the descent stage, whipping violently in the exhaust of the ascent stage engine. Aldrin looked up in time to witness the flag topple:[1] "The ascent stage of the LM separated ... I was concentrating on the computers, and Neil was studying the attitude indicator, but I looked up long enough to see the flag fall over."[18] Subsequent Apollo missions usually planted the American flags at least 100 feet (30 m) from the LM to prevent them being blown over by the ascent engine exhaust.
After rendezvous with Columbia, Eagle's ascent stage was jettisoned into lunar orbit on July 21, 1969, at 23:41 UTC. Just before the Apollo 12 flight, it was noted that Eagle was still likely to be orbiting the Moon. Later NASA reports mentioned that Eagle's orbit had decayed, resulting in it impacting in an "uncertain location" on the lunar surface.[58] The location is uncertain because the Eagle ascent stage was not tracked after it was jettisoned, and the lunar gravity field is sufficiently non-uniform to make the orbit of the spacecraft unpredictable after a short time. NASA estimated that the orbit had decayed within months and would have impacted on the Moon.
On July 23, the last night before splashdown, the three astronauts made a television broadcast in which Collins commented:
... The Saturn V rocket which put us in orbit is an incredibly complicated piece of machinery, every piece of which worked flawlessly ... We have always had confidence that this equipment will work properly. All this is possible only through the blood, sweat, and tears of a number of a people ... All you see is the three of us, but beneath the surface are thousands and thousands of others, and to all of those, I would like to say, "Thank you very much."
Aldrin added:
This has been far more than three men on a mission to the Moon; more, still, than the efforts of a government and industry team; more, even, than the efforts of one nation. We feel that this stands as a symbol of the insatiable curiosity of all mankind to explore the unknown ... Personally, in reflecting on the events of the past several days, a verse from Psalms comes to mind. "When I consider the heavens, the work of Thy fingers, the Moon and the stars, which Thou hast ordained; What is man that Thou art mindful of him?"
Armstrong concluded:
The responsibility for this flight lies first with history and with the giants of science who have preceded this effort; next with the American people, who have, through their will, indicated their desire; next with four administrations and their Congresses, for implementing that will; and then, with the agency and industry teams that built our spacecraft, the Saturn, the Columbia, the Eagle, and the little EMU, the spacesuit and backpack that was our small spacecraft out on the lunar surface. We would like to give special thanks to all those Americans who built the spacecraft; who did the construction, design, the tests, and put their hearts and all their abilities into those craft. To those people tonight, we give a special thank you, and to all the other people that are listening and watching tonight, God bless you. Good night from Apollo 11.[18]
On the return to Earth, a bearing at the Guam tracking station failed, potentially preventing communication on the last segment of the Earth return. A regular repair was not possible in the available time but the station director, Charles Force, had his ten-year-old son Greg use his small hands to reach into the housing and pack it with grease. Greg later was thanked by Armstrong.[59]
Splashdown and quarantine
Columbia floats on the ocean as Navy divers assist in retrieving the astronauts
The astronauts in their Biological Isolation Garments aboard the USS Hornet
On July 24, the astronauts returned home aboard the Command Module Columbia just before dawn local time (16:51 UTC[4]) at 13°19′N 169°9′W / 13.317°N 169.150°W / 13.317; -169.150 (Apollo 11 splashdown), in the Pacific Ocean 2,660 km (1,440 nmi) east of Wake Island, 380 km (210 nmi) south of Johnston Atoll, and 24 km (13 nmi) from the recovery ship, USS Hornet.[1] This is near the village of Vatia in American Samoa.[60] A copy of the American Samoa-flag, which was brought to the moon by Apollo 11, is on display at the Jean P. Haydon Museum in Pago Pago, the territorial capital of American Samoa.[61]
At 16:44 UTC the drogue parachutes had been deployed and seven minutes later the Command Module struck the water forcefully. During splashdown, the Command Module landed upside down but was righted within 10 minutes by flotation bags triggered by the astronauts. "Everything's okay. Our checklist is complete. Awaiting swimmers", was Armstrong's last official transmission from Columbia. A diver from the Navy helicopter hovering above attached a sea anchor to the Command Module to prevent it from drifting. Additional divers attached flotation collars to stabilize the module and position rafts for astronaut extraction. Though the chance of bringing back pathogens from the lunar surface was considered remote, it was considered a possibility and NASA took great precautions at the recovery site. Divers provided the astronauts with Biological Isolation Garments (BIGs) which were worn until they reached isolation facilities on board the Hornet. Additionally, astronauts were rubbed down with a sodium hypochlorite solution and the Command Module wiped with Betadine to remove any lunar dust that might be present. The raft containing decontamination materials was then intentionally sunk.[62]
A second Sea King helicopter hoisted the astronauts aboard one by one, where a NASA flight surgeon gave each a brief physical check during the 0.5 nautical miles (930 m) trip back to the Hornet.
The crew of Apollo 11 in quarantine after returning to Earth, visited by Richard Nixon
After touchdown on the Hornet, the astronauts exited the helicopter, leaving the flight surgeon and three crewmen. The helicopter was then lowered into hangar bay #2 where the astronauts walked the 30 feet (9.1 m) to the Mobile Quarantine Facility (MQF) where they would begin the earth-based portion of their 21 days of quarantine.[63] This practice would continue for two more Apollo missions, Apollo 12 and Apollo 14, before the Moon was proven to be barren of life and the quarantine process dropped.[62][64]
President Richard Nixon was aboard Hornet to personally welcome the astronauts back to Earth. He told the astronauts, "As a result of what you've done, the world has never been closer together before."[65] After Nixon departed, the Hornet was brought alongside the five-ton Command Module where it was placed aboard by the ship's crane, placed on a dolly and moved next to the MQF. The Hornet sailed for Pearl Harbor where Columbia and the MQF were airlifted to the Manned Spacecraft Center.[62]
In accordance with the Extra-Terrestrial Exposure Law, a set of regulations promulgated by NASA on July 16[66] to codify its quarantine protocol, the astronauts continued in quarantine out of concern that the Moon might contain undiscovered pathogens and that the astronauts might have been exposed to them during their Moon walks. However, after three weeks in confinement (first in the Apollo spacecraft, then in their trailer on the Hornet, and finally in the Lunar Receiving Laboratory at the Manned Spacecraft Center), the astronauts were given a clean bill of health.[67] On August 10, 1969, the Interagency Committee on Back Contamination met in Atlanta and lifted the quarantine on the astronauts, on those who had joined them in quarantine (NASA physician William Carpentier and MQF project engineer John Hirasaki[68]), and on Columbia itself.[69] Loose equipment from the spacecraft would remain in isolation until the lunar samples were released for study.[69]
Celebration
Parade in New York City
On August 13, they rode in parades in their honor in New York, Chicago, and Los Angeles.[70][71] On the same evening in Los Angeles there was an official State Dinner to celebrate the flight, attended by members of Congress, 44 governors, the Chief Justice of the United States, and ambassadors from 83 nations at the Century Plaza Hotel.[71] President Richard Nixon and Vice President Spiro T. Agnew honored each astronaut with a presentation of the Presidential Medal of Freedom.[71] This celebration was the beginning of a 45-day "Giant Leap" tour that brought the astronauts to 25 foreign countries and included visits with prominent leaders such as Queen Elizabeth II of the United Kingdom. Many nations honored the first manned Moon landing with special features in magazines or by issuing Apollo 11 commemorative postage stamps or coins.[72][73]
On September 16, 1969, the three astronauts spoke before a joint session of Congress on Capitol Hill. They presented two US flags, one to the House of Representatives and the other to the Senate, that had been carried to the surface of the Moon with them.
Moon race
Artist's impression of Luna 15
The Soviet Union had been competing with the US in landing a man on the Moon but had been hampered by repeated failures in development of a launcher comparable to the Saturn V.[74] Meanwhile, they tried to beat the US to return lunar material to the Earth by means of unmanned probes. On July 13, three days before Apollo 11's launch, they launched Luna 15, which reached lunar orbit before Apollo 11. During descent, a malfunction caused Luna 15 to crash in Mare Crisium about two hours before Armstrong and Aldrin took off from the Moon's surface to begin their voyage home. The Jodrell Bank Observatory radio telescope in England was later discovered to have recorded transmissions from Luna 15 during its descent, and this was published in July 2009 on the 40th anniversary of Apollo 11.[75]
Spacecraft location
Command Module Columbia at the National Air and Space Museum
Lunar Module landing site photographed by the LRO in 2012
The Command Module Columbia was displayed at the National Air and Space Museum (NASM), Washington, D.C. It was in the central Milestones of Flight exhibition hall in front of the Jefferson Drive entrance, sharing the main hall with other pioneering flight vehicles such as the Wright Flyer, the Spirit of St. Louis, the Bell X-1, the North American X-15, Mercury spacecraft Friendship 7, and Gemini 4. Armstrong's and Aldrin's space suits are displayed in the museum's Apollo to the Moon exhibit. The quarantine trailer, the flotation collar, and the righting spheres are displayed at the Smithsonian's Steven F. Udvar-Hazy Center annex near Washington Dulles International Airport in Chantilly, Virginia.
In 2009, the Lunar Reconnaissance Orbiter (LRO) imaged the various Apollo landing sites on the surface of the Moon, for the first time with sufficient resolution to see the descent stages of the lunar modules, scientific instruments, and foot trails made by the astronauts.
In March 2012 a team of specialists financed by Amazon founder Jeff Bezos located the F-1 engines that launched Apollo 11 into space. The engines were found below the Atlantic Ocean's surface through the use of advanced sonar scanning.[76] His team brought parts of two of the five engines to the surface. In July 2013, a conservator discovered a serial number under the rust on one of the engines raised from the Atlantic, which NASA confirmed was from the Apollo 11 launch.[77][78]
Command Module Columbia at the Mary Baker Engen Restoration Hanger
Columbia was moved in 2017 to the NASM Mary Baker Engen Restoration Hangar at the Steven F. Udvar-Hazy Center in Chantilly, VA, to be readied for a four-city tour titled Destination Moon: The Apollo 11 Mission. This will include Space Center Houston (October 14, 2017, to March 18, 2018), the Saint Louis Science Center (April 14 to September 3, 2018), the Senator John Heinz History Center in Pittsburgh (September 29, 2018, to February 18, 2019), and the Seattle Museum of Flight (March 16 to September 2, 2019).[79][80]
40th anniversary events
Mike Simons, director of the National Electronics Museum, assembles an Apollo TV camera for display at the Newseum
On July 15, 2009, Life.com released a photo gallery of previously unpublished photos of the astronauts taken by Life photographer Ralph Morse prior to the Apollo 11 launch.[81]
From July 16–24, 2009, NASA streamed the original mission audio on its website in real time 40 years to the minute after the events occurred.[82] In addition, it is in the process of restoring the video footage and has released a preview of key moments.[83]
On July 20, 2009, the crew of Armstrong, Aldrin, and Collins met with U.S. President Barack Obama at the White House.[84] "We expect that there is, as we speak, another generation of kids out there who are looking up at the sky and are going to be the next Armstrong, Collins and Aldrin", Obama said. "We want to make sure that NASA is going to be there for them when they want to take their journey."[85]
The John F. Kennedy Presidential Library and Museum set up a Flash website that rebroadcasts the transmissions of Apollo 11 from launch to landing on the Moon.[86]
A group of British scientists interviewed as part of the anniversary events reflected on the significance of the Moon landing:
It was carried out in a technically brilliant way with risks taken ... that would be inconceivable in the risk-averse world of today ... The Apollo programme is arguably the greatest technical achievement of mankind to date ... nothing since Apollo has come close [to] the excitement that was generated by those astronauts – Armstrong, Aldrin and the 10 others who followed them.[87]
On August 7, 2009, an act of Congress awarded the three astronauts a Congressional Gold Medal, the highest civilian award in the United States. The bill was sponsored by Florida Sen. Bill Nelson and Florida Rep. Alan Grayson.[88][89]
In July 2010, air-to-ground voice recordings and film footage shot in Mission Control during the Apollo 11 powered descent and landing was re-synchronised and released for the first time.[90]
Gallery
Spectators camp out to watch the launch
Seating credential issued to viewers of the Apollo 11 launch
Launch Control Center before liftoff
Collins, Aldrin and Armstrong consult with pad leader Guenter Wendt after Countdown Demonstration Test
Roll-out of Saturn V AS-505 from the Vehicle Assembly Building to the launch pad
The Earth as seen from Apollo 11 on the third day out
Play media
Neil Armstrong describes the Moon's surface before setting foot on it
Play media
President Nixon speaks to Armstrong and Aldrin from the Oval Office
The Washington Post on Monday, July 21, 1969: "'The Eagle Has Landed'—Two Men Walk on the Moon"
Neil Armstrong's certification: "I certify that this World Scout Badge was carried to the surface of the Moon on man's first lunar landing, Apollo XI, July 20, 1969."
First Man on the Moon Commemorative Issue of 1969
Apollo 11 crew at the White House in 2004
See also
Apollo 11 flight, artist concept (an illustrated timeline)
Apollo 11 in popular culture
Apollo 11 missing tapes
Apollo Guidance Computer
Google Moon
List of man-made objects on the Moon
List of spacewalks and moonwalks 1965–1999
Moon landing conspiracy theories
Wernher von Braun
Notes
Jump up ^ During the mission, the cause was diagnosed as the rendezvous radar switch being in the wrong position, causing the computer to process data from both the rendezvous and landing radars at the same time, as stated in the letter.[2][22] However, software engineer Don Eyles concluded in a 2005 Guidance and Control Conference paper that the problem was actually due to a hardware design bug previously seen during testing of the first unmanned LM for Apollo 5. Having the rendezvous radar on (so that it was warmed up in case of an emergency landing abort) should have been irrelevant to the computer, but an electrical phasing mismatch between two parts of the rendezvous radar system could cause the stationary antenna to appear to the computer as dithering back and forth between two positions, depending upon how the hardware randomly powered up. The extra spurious cycle stealing, as the rendezvous radar updated an involuntary counter, caused the computer alarms.[23] The Apollo onboard flight software for both the CM and LM was developed using an asynchronous executive so that higher priority jobs could interrupt lower priority jobs. The sequence that occurred in the Apollo 11 landing was successful because of its global error detection and recovery system. This included the restart capability to "kill and start over again" and recompute and the display interface routines ("priority displays") providing the ability, in the case of an emergency, to interrupt nominal displays with higher priority alarm displays. Steps previously taken to create solutions that took advantage of this multiprogramming environment suggested solutions for multiprocessing. Although only one process is actively executing at a given time in a multiprogramming environment, other processes in the same system―sleeping or waiting―exist in parallel with the executing process. With this as a backdrop, the priority display mechanisms were created, essentially changing the man-machine interface between the astronauts and the onboard flight software from synchronous to asynchronous displays so that a mission could be reconfigured in real time should it become necessary to do so.[24]
Jump up ^ A NASA transcript explains that the "a" article was intended, whether or not it was said;[36] the intention was to contrast a man (an individual's action) and mankind (as a species).
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Further reading
Cappellari, J.O. Jr. (May–June 1972). Where on the Moon? An Apollo Systems Engineering Problem. Bell System Technical Journal. 51. New York: American Telephone and Telegraph Company. pp. 955–1127. OCLC 17779623.
Barbour, John Andrews (1969). Footprints on the Moon. Writers and editors of the Associated Press. Manuscript by John Barbour. New York. Associated Press. OCLC 26341.
French, Francis; Burgess, Colin (2007). In the Shadow of the Moon: A Challenging Journey to Tranquility, 1965–1969. Outward Odyssey: A People's History of Spaceflight. Foreword by Walter Cunningham. Lincoln, Nebraska: University of Nebraska Press. ISBN 978-0-8032-1128-5.
Rahman, Tahir (2008). We Came in Peace for All Mankind: The Untold Story of the Apollo 11 Silicon Disc (1st ed.). Overland Park, Kansas: Leathers Publishing. ISBN 978-1-58597-441-2.
Mailer, Norman "Of a Fire on the Moon" (first serialized in Life magazine; published as a book in 1970). https://en.wikipedia.org/wiki/Of_a_Fire_on_the_Moon
For young readers
Aldrin, Buzz (2005). Reaching for the Moon. Paintings by Wendell Minor (1st ed.). New York: HarperCollins. 40 pages. ISBN 0-06-055446-0.
Floca, Brian (2009). Moonshot: The Flight of Apollo 11. New York: Atheneum Books for Young Readers. 48 pages. ISBN 978-1-4169-5046-2.
Thimmesh, Catherine (2006). Team Moon: How 400,000 People Landed Apollo 11 on the Moon. New York: Houghton Mifflin Company. 80 pages. ISBN 978-0-618-50757-3.
External links
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Wikimedia Commons has media related to Apollo 11.
"Apollo 11 transcripts" at Spacelog
"Magnificent Desolation: The Apollo 11 Moonwalk Pictures" by Apollo Lunar Surface Journal contributor Joseph O'Dea. Complete gallery of Apollo 11 EVA pictures.
"Apollo 11" Detailed mission information by Dr. David R. Williams, NASA Goddard Space Flight Center
"Apollo 11" Photographer Blaise Thirard's presentation of Apollo 11 photographs
Sylvester, Rachel; Coates, Sam. "Men on the Moon". The Times. London. Archived from the original on May 31, 2010. Retrieved May 24, 2013. Original reports from The Times (London)
"Apollo 40th Anniversary". NASA. July 2009. Archived from the original on July 18, 2009. Retrieved July 18, 2009. NASA website honoring the mission
"The untold story: how one small silicon disc delivered a giant message to the Moon" at collectSPACE.com
"Apollo Anniversary: Moon Landing 'Inspired World'" National Geographic News, July 16, 2004 – 35th anniversary of Apollo 11; Steven Dick, NASA's chief historian: "... a thousand years from now, that step may be considered the crowning achievement of the 20th century."
"Ten Things You Didn't Know About the Apollo 11 Moon Landing" by Craig Nelson, Popular Mechanics, July 13, 2009
"Coverage of the Flight of Apollo 11 – (1969)" provided by Todd Kosovich for RadioTapes.com. Radio station recordings (airchecks) covering the flight of Apollo 11.
"Space Missions" at Buzz Aldrin's official website
NASA reports
"Apollo Program Summary Report". NASA History Program Office. NASA. April 1975. Archived from the original on September 29, 2006. Retrieved September 23, 2006. – 200+ pages
Ertel, Ivan (1969–1978). The Apollo Spacecraft: A Chronology. I–IV. Morse, M.L.; Bays, J.K.; Brooks, C.G.; Newkirk, R.W. Washington, D.C.: NASA. LCCN 69060008. OCLC 23818. NASA SP-4009. Retrieved September 23, 2006.
"Apollo 11 Mission Report" (PDF). NASA. 1971. – 230 pages
"EP-72 Log of Apollo 11". NASA History Program Office. NASA. Retrieved January 16, 2006. – Timeline of the mission, from "One Giant Leap for Mandkind," 2004.
Multimedia
"'To the Moon and Back': LIFE Covers the Apollo 11 Mission". Time. Archived from the original on July 20, 2013. Retrieved July 20, 2013. – Life magazine Special Edition, August 11, 1969
"Apollo 11: Scenes From the Moon". Archived from the original on July 17, 2009. Retrieved June 13, 2013. – slideshow by Life magazine
Garner, Robert (ed.). "Apollo 11 Partial Restoration HD Videos (Downloads)". NASA. Retrieved June 13, 2013. – Remastered videos of the original landing.
Jones, Eric M. Jones, ed. (1995). "Apollo 11 Lunar Surface Journal". Apollo 11 Lunar Surface Journal. NASA. Retrieved September 23, 2006. – Transcripts and audio clips of important parts of the mission
Jones, Eric M.; Glover, Ken, eds. (1995–2009). "Apollo 11 Image Library". Apollo 11 Lunar Surface Journal. NASA. Retrieved September 23, 2006. – Hundreds of high-resolution images of the mission, including assembled panoramas.
"Apollo Mission Traverse Maps". USGS. Archived from the original on September 24, 2006. Retrieved September 23, 2006. – Several maps showing routes of moonwalks
Google Moon – with lunar landing sites tagged
Apollo Lunar Surface VR Panoramas at moonpans.com
Apollo Image Archive at Arizona State University
Apollo launch and mission videos at ApolloTV.net
Real-time audiovisual recreation of the lunar module landing with audio feeds from the crew of Apollo 11 and Ground Control
Moonwalk One – Apollo 11 : Neil Armstrong – The First Man on the Moon – 1969 NASA Documentary on YouTube
The Eagle Has Landed : The Flight of Apollo 11 & Neil Armstrong Landing on the Moon – NASA Documentary on YouTube
Apollo 11 "For All of Mankind" : Neil Armstrong Landing On The Moon – NASA Documentary on YouTube
Video of Apollo 11 launch on YouTube
Apollo 11 Restored EVA Part 1 (1h of restored footage)
[show]
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Missions and tests of the Apollo program
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[show]
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See also
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List of Apollo astronauts
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Moon landing
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[show]
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[show]
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← 1968 · Orbital launches in 1969 · 1970 →
Venera 5 | Venera 6 | Kosmos 263 | Soyuz 4 | Soyuz 5 | 7K-L1 No.13L | OSO-5 | OPS 7585 | Kosmos 264 | US-A No.5 | Isis 1 | Meteor-1 No.11 | OPS 3890 · OPS 2644 | Intelsat III F-3 | Kosmos 265 | OPS 0757 | Luna E-8 No.201 | 7K-L1S No.3 | Mariner 6 | Kosmos 266 | ESSA-9 | Kosmos 267 | Apollo 9 | OPS 4248 | Kosmos 268 | Kosmos 269 | Kosmos 270 | Kosmos 271 | Kosmos 272 | OV1-17 · OV1-18 · OV1-19 · Orbiscal 2 | OPS 3722 · OPS 2285 | Kosmos 273 | Kosmos 274 | Meteor-1 No.12 | 2M No.521 | Mariner 7 | Kosmos 275 | 2M No.522 | Kosmos 276 | Kosmos 277 | Kosmos 278 | Molniya-1 No.16 | OPS 3148 | Nimbus 3 · SECOR 13 | Kosmos 279 | OPS 5310 | Kosmos 280 | OPS 1101 · OPS 1721 | Kosmos 281 | Apollo 10 | Kosmos 282 | Intelsat III F-4 | OPS 6909 · OPS 6911 · ERS-29 · ERS-26 · OV5-9 | Kosmos 283 | Kosmos 284 | Kosmos 285 | OPS 1077 | OGO-6 | Luna E-8-5 No.402 | Kosmos 286 | Explorer 41 | Kosmos 287 | Kosmos 288 | Biosatellite 3 | STV-2 | 7K-L1S No.5 | Kosmos 289 | Luna 15 | Apollo 11 | Kosmos 290 | Molniya-1 No.18 | OPS 1127 | DS-P1-Yu No.23 | OPS 3654 | Intelsat III F-5 | OPS 8285 | Kosmos 291 | Zond 7 | OSO-6 · PAC-1 | ATS-5 | Kosmos 292 | Kosmos 293 | Kosmos 294 | Kosmos 295 | OPS 7807 | Pioneer E · ERS-32 | Kosmos 296 | Kosmos 297 | Kosmos 298 | Kosmos 299 | Unnamed | OPS 3531 · OPS 4710 | Kosmos 300 | Kosmos 301 | OPS 7613 · NRL PL-161 · NRL PL-162 · NRL PL-163 · NRL PL-164 · NRL PL-176 · Timation 2 · Tempsat 2 · SOICAL Cone · SOICAL Cylinder | ESRO-1B | Meteor-1 No.15 | Soyuz 6 | Soyuz 7 | Soyuz 8 | Interkosmos 1 | Kosmos 302 | Kosmos 303 | Kosmos 304 | Kosmos 305 | Kosmos 306 | Kosmos 307 | OPS 8455 | Kosmos 308 | Azur | Kosmos 309 | Apollo 12 | Kosmos 310 | Skynet 1A | Kosmos 311 | Kosmos 312 | 7K-L1e No.1 | Kosmos 313 | OPS 6617 | Kosmos 314 | Kosmos 315 | Kosmos 316 | Kosmos 317 | Interkosmos 2 | Unnamed
Payloads are separated by bullets ( · ), launches by pipes ( | ). Manned flights are indicated in bold text. Uncatalogued launch failures are listed in italics. Payloads deployed from other spacecraft are denoted in brackets.
[show]
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https://sr.wikipedia.org/wiki/Apolo_11
Apolo 11 – Serbian
sr
sr
interlanguage-link-target

values:
https://sh.wikipedia.org/wiki/Apollo_11
Apollo 11 – Serbo-Croatian
sh
sh
interlanguage-link-target

values:
https://fi.wikipedia.org/wiki/Apollo_11
Apollo 11 – Finnish
fi
fi
interlanguage-link-target

values:
https://sv.wikipedia.org/wiki/Apollo_11
Apollo 11 – Swedish
sv
sv
interlanguage-link-target

values: அப்பல்லோ 11 – Tamil

values: อะพอลโล 11 – Thai

values:
https://tr.wikipedia.org/wiki/Apollo_11
Apollo 11 – Turkish
tr
tr
interlanguage-link-target

values: اپالو 11 – Urdu

values:
https://vi.wikipedia.org/wiki/Apollo_11
Apollo 11 – Vietnamese
vi
vi
interlanguage-link-target

values:
suggestions
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