s*****t
发帖数: 1994 | 1 Jupiter's Great Dark Spot
Credit: Cassini Imaging Team, Cassini Project, NASA
Explanation: Seventeenth century astronomer Giovanni Domenico Cassini was an astute
observer of Jupiter's Great Red Spot. So it seems only fitting that his namesake, the Cassini
spacecraft, has enabled detailed observations of another planet-sized blemish -- Jupiter's
Great Dark Spot. Unlike the Red Spot, the Great Dark Spot lies near Jupiter's north pole and
seems to appear and disappear over periods of m |
|
