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Dawn's first orbit, including RC3, March 6, 2015- June 15, 2015
Ron Hobbs
post Mar 6 2015, 03:23 PM
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Dawn is now officially in orbit around (1) Ceres!

Congratulations, NASA. Nice images of crescent Ceres.

NASA Spacecraft Becomes First to Orbit a Dwarf Planet
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Phil Stooke
post Jun 13 2015, 03:39 PM
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Central pit craters are common on Ganymede and Callisto, and in certain areas of Mars, and have always been interpreted as if related to ice in the subsurface. The rebounding central peak is made of or rich in ice, which then sublimes away (or melts and flows, etc.) to leave a pit.

Phil



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... because the Solar System ain't gonna map itself.

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Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf
NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain)
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Posts in this topic
- Ron Hobbs   Dawn's first orbit, including RC3   Mar 6 2015, 03:23 PM
- - scalbers   Here is an updated map, adding 3 recent higher res...   Jun 13 2015, 02:26 PM
|- - Greenish   QUOTE (scalbers @ Jun 13 2015, 10:26 AM) ...   Jun 15 2015, 06:27 PM
- - Phil Stooke   Central pit craters are common on Ganymede and Cal...   Jun 13 2015, 03:39 PM
- - MarkG   Again, it helps to consider the profound ancient-n...   Jun 15 2015, 05:44 PM
- - Sherbert   I have been thinking along those lines too Phil. T...   Jun 15 2015, 07:30 PM
- - alan   QUOTE Once ejected onto the floor of the crater an...   Jun 16 2015, 06:15 PM
- - Phil Stooke   Greenish - fantastic maps, thanks for doing that. ...   Jun 17 2015, 02:10 AM
|- - Greenish   Phil - Glad they are of use.... all credit to scal...   Jun 17 2015, 04:43 PM
- - nprev   Quick note: Please post work from & comments r...   Jun 17 2015, 04:01 AM
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