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Questions tagged [ice]

Ice refers to extra-terrestrial sources of ice (i.e. other celestial bodies like planets, comets, etc). Use this tag to discuss the search for ice, as well as ice found through space exploration.

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1answer
204 views

Why were there so many icicles in this Space Shuttle launch area? (Challenger disaster)

The blogpost Lessons From NASA Disasters: When Curiosity Deficits Kill is about the importance of freedom of curiosity for members of organizations. However it contains many Space Shuttle-related ...
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1answer
236 views

How tall are Pluto's mountains? Are they the tallest ice features in the Solar System?

The Gizmodo article It Looks Like Pluto Has a Liquid Water Ocean shows a large image of pluto with obliquely lit peaks near both the terminator and the edge of the disk where the topography is really ...
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Which would be more prone to regolith-ice-melting issues, a rover's wheels or an astronaut's boots?

This answer to Has NASA “gone south”? Why are astronauts needed to explore the Moon's south pole? and the question What would happen if an Apollo astronaut landed on Pluto? both touch on issues of ...
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How old is the oldest water ice in Mars' polar caps?

Mars has permanent water ice caps at both poles, which are seasonally covered by carbon dioxide ice. What knowledge do we have regarding the age of the oldest ice in those caps?
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1answer
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Has the HP$^3$ on the Insight lander actually a probe to detect water and ice in the subsurface of Mars?

The Heat Flow and Physical Properties Package (HP$^3$) is a science instrument onboard the Insight lander that features a self-penetrating probe to determine how heat flows inside Mars. Nicknamed "the ...
3
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1answer
70 views

Would a large impactor on an ice moon cause a thinning of the ice surface?

While it has not been confirmed, Callisto (Jupiter IV) could potentially have a small subsurface ocean below a thick ~100 km ice layer, according to Wikipedia. A mission to explore that ocean might ...
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4answers
2k views

If there is actual ice on the moon, why hasn't it sublimated?

The Ars Technica article NASA seeks industry help with lunar landings, potentially sample return discusses the potential value of ice on the moon as a source for fuel in future space missions. Ice ...
5
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2answers
353 views

What forms of water ice have been observed and verified in the solar system?

The cool plot in this answer (from here) got me thinking about the more than sixteen distinct forms of ice, and how many of them have been actually seen to occur naturally in the solar system. There ...
6
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2answers
386 views

Where do ice giants contain ice?

There is a class of planets called ice giants. Let's talk about Neptune. The top layer is atmosphere, consisting of hydrogen and helium. The amount of these gases is about 10% but they produce high ...
26
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1answer
22k views

What are the droplets/particles falling off rockets at launch?

In this picture from the AsiaSat 6 launch by Falcon 9 on 8th September 2014, the part of the rocket between the fairing and the engine appears to be surrounded by dust, water droplets or debris: And ...
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What about gathering water ice from Saturn's rings?

Saturn's rings are almost pure water ice in nice manageable chunks from specks to boulders a few meters across. Assuming there is something truly useful to do with it - once again talking about ...