Blog Archive

Venus' very pretty craters

Posted by Emily Lakdawalla on 2012/03/05 04:15 CST

Each Magellan images of Venus seems to be a work of abstract art.

Guest Post: Patrick Donohue: Six days in the crater (day one)

Posted by Pat Donohue on 2012/02/03 10:02 CST

Guest Post: Patrick Donohue: Six days in the crater (day one)

Notes on Dawn at Vesta from the 2011 American Geophysical Union meeting

Posted by Emily Lakdawalla on 2011/12/08 03:19 CST

A report on the press briefing and talks from the Fall 2011 American Geophyisical Union meeting about the data on Vesta collected so far by Dawn.

Mercury's Weird Terrain

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.