MESSENGER science results |
MESSENGER science results |
Sep 28 2011, 05:14 AM
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
to be announced Thursday and to be published in Science Friday.
MESSENGER Reveals New Details of Planet Mercury this looks like a geeky cool Thursday (Thursday evening here in Europe): we have a WISE NEO update at 17 UTC and this MESSENGER teleconf at 18 UTC! |
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Sep 29 2011, 09:32 PM
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Solar System Cartographer Group: Members Posts: 10229 Joined: 5-April 05 From: Canada Member No.: 227 |
A few further thoughts on the pits for clarification. There are two distinct types, the large deep pits such as those I illustrated near a crater in Caloris, with 'false color orange' surroundings (and as shown by Jim Head in the new release), and much smaller shallow 'hollows' making up the bright patches on some crater floors, illustrated by Blewitt in the new release. Both kinds are seen in Tyagaraja crater. The smaller ones are more like the small lunar pits I've been showing in LROC images. The larger ones might be more like the big pyroclastic center south of Orientale on the Moon, surrounded by a dark halo. In both cases, they are found on the Moon, but few and old, and on Mercury where they are plentifull and probably a lot younger.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke 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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