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On to Santa Maria! |
 Nov 24 2010, 05:53 PM
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#241
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Member  Group: Members Posts: 146 Joined: 31-October 08 Member No.: 4473  |
QUOTE (OWW @ Nov 24 2010, 09:06 AM)  The dunes near the north rim of Santa Maria do look a bit like the northeast corner of Spirit's El Dorado. The large number of crater interiors and other steep south-facing slopes in various equatorial areas with deposits of dark sandy material bespeaks of some sort of episode in the Martian past that would transport and deposit this material. An interesting problem. Of note is that Victoria had dark windblown material blowing from inside its northern rim. Maybe the dark stuff (as dunes up against the North rim?) is there too, but buried by more-recent dust and debris except where a few spots are eroding.... |
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Nov 24 2010, 05:54 PM
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#242
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Founder Group: Chairman Posts: 14445 Joined: 8-February 04 Member No.: 1 |
I don't think MI's been through an entry - it has no symptoms of being meteoritic (fusion crust etc ) and indeed its angular edges would almost preclude such an adventure would they not?
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Nov 24 2010, 05:59 PM
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#243
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Member Group: Members Posts: 146 Joined: 31-October 08 Member No.: 4473 |
We simply do not know what has spalled or broken off of this rock.
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Nov 24 2010, 06:33 PM
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#244
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Solar System Cartographer Group: Members Posts: 10255 Joined: 5-April 05 From: Canada Member No.: 227 |
That's true, but 'we don't know' is not evidence of anything. It is much more likely that this is a simple ejecta block. It's easy to invent additional possibilities, but it gets you nowhere in the absence of specific evidence.
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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Nov 24 2010, 06:43 PM
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#245
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 Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
QUOTE (MarkG @ Nov 24 2010, 12:45 PM) ...it is likely that MI is ejecta... Let's just say we agree on this point. |
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Nov 25 2010, 12:32 PM
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#246
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Senior Member Group: Members Posts: 2886 Joined: 22-April 05 From: Ridderkerk, Netherlands Member No.: 353 |
Nice view from Endeavour crater.
Taken on Sol 2429 with the L2 pancam. Jan van Driel http://www.unmannedspaceflight.com/index.p...st&id=23079 |
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Nov 25 2010, 06:50 PM
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#247
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Junior Member Group: Members Posts: 79 Joined: 11-September 09 Member No.: 4937 |
Sorry, I got an error message. |
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Nov 25 2010, 07:07 PM
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#248
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 Member Group: Members Posts: 194 Joined: 3-January 10 Member No.: 5156 |
Just one month, and we have Christmas. Here's a calendar to shorten the waiting time ...
Couldn't resist to open the door of the Advent calendar a week to early ... 
Attached thumbnail(s)
-------------------- Need more input ...
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Nov 25 2010, 08:30 PM
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#249
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Senior Member Group: Moderator Posts: 4280 Joined: 19-April 05 From: .br at .es Member No.: 253 |
QUOTE (jvandriel @ Nov 25 2010, 01:32 PM) Jan van Driel Welcome back, jvandriel!  It was a looooong time without news from Holland. QUOTE (MoreInput @ Nov 25 2010, 08:07 PM) Here's a calendar to shorten the waiting time ... Yummy.
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Nov 25 2010, 08:47 PM
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#250
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 Merciless Robot Group: Admin Posts: 8789 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
'Tis the season; best advent calendar ever, thanks!!!
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Nov 25 2010, 09:45 PM
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#251
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Member Group: Members Posts: 470 Joined: 24-March 04 From: Finland Member No.: 63 |
Haha, that's excellent!
-------------------- Antti Kuosmanen
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Nov 26 2010, 10:56 AM
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#252
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 The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
Just for fun...
Ever wondererd how big Endeavour crater is compared to Gusev crater, landing site of Spirit..? This big...
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Nov 26 2010, 04:08 PM
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#253
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 Senior Member Group: Members Posts: 4260 Joined: 17-January 05 Member No.: 152 |
Thanks, Stu. And the Phobos shadow is a nice touch, too.
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Nov 26 2010, 04:17 PM
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#254
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
-------------------- |
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Nov 26 2010, 04:46 PM
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#255
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Merciless Robot Group: Admin Posts: 8789 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Great comparison, Stu, you compulsive science educator, you (and the shadow's nice too!
)
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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