In addition to its manned space exploration program, NASA has a large and growing fleet of unmanned orbiting observatories, satellites and spacecraft that collect information and sometimes dramatic images of Earth, the solar system and the far galaxies. NASA and other government agencies currently participate in 65 active science missions, many of which are in cooperation with the space agencies of other countries. Click on the information bubbles below to learn more.
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Designer: Noel Smart - washingtonpost.com | Graphics: Patterson Clark - The Washington Post | Images courtesy of the International Astronomical Union, NASA and JPL
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