Posted by Marc Rayman on 2013/01/02 04:38 CST
As Dawn treks onward to Ceres, its path will cross within a few degrees of the moon as seen from Earth on Jan. 21–22.
Planetary Radio: A Dawn MIssion Update
And a Video Tour of Marc Rayman's Space Collection
Posted by Mat Kaplan on 2012/11/20 12:36 CST
A Planetary Radio status report from the Dawn mission's Marc Rayman, accompanied by a fascinating video tour of Marc's at-home collection of space information and memorabilia.
Posted by Emily Lakdawalla on 2011/05/10 01:51 CDT
Here's a theoretical paper that asks an interesting question: When the solar system was very young and still very hot, could medium-sized asteroids have been habitable abodes for life?
Posted by Emily Lakdawalla on 2011/04/15 02:37 CDT
Since the Galileo mission discovered tiny Dactyl circling Ida in 1993, quite a lot of asteroid systems have been found to be binary; there are even a few triples. So it's quite reasonable to guess that two of the biggest asteroids, Ceres and Vesta, might also have satellites.