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发帖数: 1994 | 1 http://antwrp.gsfc.nasa.gov/apod/image/0705/earth_galileo_big.mov
Rotating Earth from Galileo
Credit: NASA, JPL, Doug Ellison
Explanation: When passing Earth on your way to Jupiter, what should you look
for? That question arose for the robotic Galileo spacecraft that
soundlessly coasted past the Solar System's most photographed orb almost two
decades ago. The Galileo spacecraft, although originally launched from
Earth, coasted past its home world twice in an effort to gain speed and
shorten the |
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