All Questions
6 questions
3
votes
2
answers
347
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Could there be caves on Mars in the areas inside Jezero crater and the watershed west and north of it where the Mg carbonates are detected?
Both images above are screenshots from Fig. 1 of the article Formation of Magnesium Carbonates on Earth and Implications for Mars
The green coloured regions indicate where Mg carbonates were detected, ...
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5
votes
3
answers
987
views
What could be the cause of the extraordinary high Fe counts from the PIXL instrument onboard the Perseverance rover?
In this answer a table is showed with all the elements that were detected by the PIXL instrument on 2 occasions, namely sol 140 and sol 167.
As could be expected, X-ray counts were high for Si (...
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3
votes
2
answers
258
views
After one year exploring Jezero's crater floor, has there been any investigation into the presence of trace elements with PIXL?
PIXL instrument chart sample Credit:NASA/JPL-CALTECH
Of course PIXL has been used already in Jezero crater, but as far as I know only to identify mineral compositions and textures, as described in ...
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2
votes
1
answer
187
views
What were the 21 potential landing sites for the Mars 2020 mission?
In August 2015 more than 150 scientists attended a conference to evaluate 21 potential landing sites for NASA's next rover, a mission called Mars 2020.
Out of those proposed landing sites the Mars ...
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1
vote
3
answers
343
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Would a circular saw on one arm and a trowel on another on the Mars 2020 rover add scientific value? [closed]
Edit:
I changed the question from one arm with a shovel to two arms, with one with a circular saw and the other with a trowel, some time after the first answer of @Hobbes.
I did this because in his ...
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9
votes
1
answer
595
views
Why is the northeastern region of Syrtis Major Planum a selected landing site for the Mars 2020 mission?
Image below:
One of the 3 selected landing sites, on the left side of Jezero crater, which is also selected !
A workshop for the Mars 2020 Rover mission was held in February 2017 that selected 3 ...
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