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24 votes

Is this white stuff seen by the Mars Phoenix Lander water or carbon dioxide ice?

It turns out there is a paper that discusses this exact ice patch: it's water ice, and they're referring to the white section at the top. (The small granules in the lower left may also be water ice, ...
Andrew is gone's user avatar
23 votes
Accepted

How did NASA avoid a repeat of the Mars Polar Lander failure?

The failure analysis report includes a large laundry list of recommendations to prevent a repeat failure. As usual in these reports, corrective actions are listed for potential causes that were found ...
Organic Marble's user avatar
6 votes

Is this white stuff seen by the Mars Phoenix Lander water or carbon dioxide ice?

tl;dr: The slow sublimation rate over 4 days rules out CO2 as the primary component (which would have sublimated much more quickly when exposed to the warm-ish atmosphere and sunlight), and careful ...
uhoh's user avatar
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3 votes

How to calculate velocity components of a point on Mars surface w.r.t. Mars center?

I just realized that rather than x/y/z data I can just use latitude, longitude and distance from center both for calculating position and speed w.r.t. surface and landing site, by subtracting from ...
jumpjack's user avatar
  • 3,033
1 vote

Images of Mars Phoenix Lander showing what's happened after more cycles of winter ice build-up?

The image above is an enlarged part of a HiRiSE image captured in Januari 2012, and the only other one that I could find.
Cornelis's user avatar
  • 7,503

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