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What is the sun made of? Are the Earth and planets made of the same materials? The Genesis mission sent a spacecraft to collect pieces of the sun, called solar wind, that may contain the answers. After its August 8, 2001 launch, the Genesis spacecraft journeyed a million miles sunward, unfolded its collectors and begun to "sunbathe" for more than two years, before returning to Earth in September 2004 with its unique cargo. |
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The
Deep Impact mission was the first experiment to probe beneath
the surface of a comet, attempting to reveal never before seen
materials that would provide clues to the internal composition
and structure of a comet. A variety of instruments, both onboard
the spacecraft and at ground-based and space-based observatories
around the world, observed the impact with the comet and examined
the resulting debris and interior material.
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accountability report