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Posted by Emily Lakdawalla on 2011/04/19 11:21 CDT
When Mariner 10 flew past Mercury, it caught an immense impact basin lying half in and half out of sunlight, which they named Caloris. Even with only half the basin visible, scientists knew it was one of the largest in the solar system. Geologists had to wait more than 25 years to see the rest of Caloris, and when they did it turned out to be even bigger than they had thought. But the fact that Caloris was only half in sunlight was fortuitous in one sense, because it meant that the spot on Mercury that was exactly opposite the area of the Caloris impact was also partially in sunlight. That spot looks weird.
Lovely crater turns up in MoonZoo; 2 million images classified, lots more Moon left
Posted by Emily Lakdawalla on 2011/04/18 10:48 CDT
Lovely crater turns up in MoonZoo; 2 million images classified, lots more Moon left
Memo to Australians: Tell your government if space exploration benefits your community
Posted by Emily Lakdawalla on 2011/04/17 09:21 CDT
Memo to Australians: Tell your government if space exploration benefits your community
Please join us to send off Lou Friedman in style!
Posted by Emily Lakdawalla on 2011/04/15 04:25 CDT
Please join us to send off Lou Friedman in style!
So far, no moons found at Ceres or Vesta
Posted by Emily Lakdawalla on 2011/04/15 02:37 CDT
So far, no moons found at Ceres or Vesta
Are there more Titans than Earths in the Milky Way?
Posted by Emily Lakdawalla on 2011/04/14 11:30 CDT
Are there more Titans than Earths in the Milky Way?
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