NASA&amp;#8217;s Earth science satellite fleet

When most people think about NASA, Earth is not the first thing that comes to mind. Ours agency conjures up thoughts of&nbsp;leaving&nbsp;Earth behind, so it is usually Apollo astronauts, the Moon, Mars, and Hubble views of stars and galaxies that people associate most strongly with NASA&rsquo;s brand.
However, many astronauts have found the view back at Earth is as compelling as anything else they&rsquo;ve seen.&nbsp;William Anders,&nbsp;the Apollo 8 astronaut who took the influential&nbsp;Earthrise photograph&nbsp;on C