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Results tagged with geology
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user 12102
Questions regarding surface features of celestial bodies.
2
votes
1
answer
379
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Why does the Mars Global Surveyor carry a bit of the Zagami meteorite?
The NASA News item A Piece of Mars is Going Home begins:
A piece of a meteorite called Sayh al Uhaymir 008 (SaU008) will be carried on board NASA's Mars 2020 rover mission, now being built at the …
- 151k
6
votes
4
answers
2k
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How could InSight's seismometers be intentionally and meaningfully "pinged"?
I had a friend whose summer job, a long long time ago, was to travel around an unsuspecting rural area, lay a heavy steel plate on the ground, and whack the plate with a sledge hammer. Apparently he a …
- 151k
5
votes
2
answers
450
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Does Mars have badlands?
This excellent answer addresses the amazing 3D structures shown in the image below:
The terrain examples show some striking similarities to what is referred to in the United States as "Badlands" …
- 151k
8
votes
1
answer
282
views
How did Spirit and Opportunity identify ferric sulfate and jarosite on Mars?
In the short BBC video Spain's otherworldly red river, Ricardo Amils, a researcher in Spain's Astrobiology Center says the following (amateur transcription):
Río Tinto is a peculiar place in our plan …
- 151k
0
votes
0
answers
90
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Why Perseverance's landing ellipse straddled the cliffs in the river delta; why so ambivalen...
AAPG's Destination Jezero Crater: Landing Site of the Mars 2020 Perseverance Rover suggests the geology may be different on each side of these cliffs. … Naively I would have expected it to be about 5 km to the right (East) to ensure the landing was in the lower area to ensure sampling of the lower geology, and to decrease chances of slamming into a cliff …
- 151k
7
votes
2
answers
297
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Difference between "mafic floor" and "olivine-bearing floor" in Jezero crater? (Perseverance...
Figure 3: Main geologic units within Jezero crater shown on a basemap constructed from images from the High Resolution Imaging Science Experiment (HiRISE) camera onboard the Mars Reconnaissance Orbi …
- 151k
3
votes
0
answers
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How does Curiosity's X-ray diffractometer work? Does it measure only one angle at a time or ...
Per this answer to Are quasicrystals common on the Moon and Mars?, Curiosity has an X-ray diffractometer.
X-ray diffraction from 3D crystals can (begin to) be understood by embracing Bragg's law. A 3D …
- 151k