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Results tagged with planetary-science
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user 49
The study of planets, asteroids, comets, etc, including weather, geology, composition, etc. This tag should be used when the focus of the question is on the the science of a non-Earth non-star natural object, and not used when designing spacecraft to cope with said challenges.
8
votes
Accepted
Could Jupiter's tidal forces be used to generate energy?
We don't really know how the tidal energy that Europa gets from its orbit around Jupiter translates exactly to its surface or subsurface activity, so it would be hard to speculate on any possible powe …
- 732
4
votes
Can a planet or other large body be a superconductor?
Yes, and that's believed to be the source of Jupiter's gigantic magnetosphere. It is also a possible explanation for bizarre cooling of Cassiopeia A. So that's at least two immediate effects of large …
- 3
123
votes
Accepted
What will be the effect if we stand on Jupiter?
(*) Jupiter, for all intents and purposes, doesn't have a solid surface to stand on. Not any more than you could say that Earth's atmosphere has it, before you hit Terra Firma. It's an enormous ball c …
- 4,582
13
votes
A cloud-top colony on Venus, will it drift to the poles?
There's a lot to be said about circulation of Venusian troposphere first, but that's all nicely explained on Wikipedia. But please read it as background, if that's required; For easier reference thoug …
- 76.4k
5
votes
Accepted
How to produce oxygen out of Venusian atmosphere's carbon dioxide?
Some of your options are:
Electrolysis of the atmosphere (see e.g. how MOXIE will do it on Mars), for which you will need a source of electricity, a catalyst (e.g. zirconia), and which produces carb …
CommunityBot
- 1
15
votes
Accepted
Can the Sun set twice during the same day on Mercury?
If memory serves correctly*, then the angular diameter of the Sun as it appears on the skies of Mercury from its surface is larger than its total angular displacement during its apparent retrograde mo …
- 76.4k
11
votes
Accepted
Does Venus have doldrums or horse latitudes (latitudes with lower winds)?
There are no horse latitudes on Venus, only equatorial doldrums and polar fronts / collars. Convection driven Hadley cells on Venus stretch to ±60° in latitude from the intertropical convergence zo …
CommunityBot
- 1
3
votes
Accepted
Is Hydra of Pluto cut unusually, or just darkened on its surface?
According to New Horizons team, it is most likely a bilobed body produced by a slow collision of two older moons, and is somewhat similar in shape to comet 67P/Churyumov-Gerasimenko. Here's an enhance …
- 76.4k
13
votes
Accepted
Why has no lander or rover visited Hellas Planitia on Mars?
Hellas basin is certainly an interesting region, and several landing site selection processes evaluated candidate sites in it, mostly in the Northernmost region that's above the 30° South circle of la …
CommunityBot
- 1
18
votes
Accepted
Is there a map or list of all the lava tube skylights the LRO has detected on the Moon?
There is a map of lunar pits, created by R. V. Wagner and M. S. Robinson of the School of Earth and Space Exploration, Arizona State University, in 2014. From Distribution, Age, and Formation Mechanis …
- 76.4k
9
votes
Accepted
Is this photo of Mars in color?
No, two pairs of MSL (Curiosity) Navcams are black & white visible light stereoscopic (45 degree angle of view) cameras. They're mounted on a mast at a rough height of what a human would see if standi …
- 76.4k
9
votes
Can it be said that Venus is covered by an ocean rather than atmosphere?
Venusian lower atmosphere qualifies as a supercritical fluid, but there isn't any clear liquid-gas interface (a surface layer) where Venusian ocean and its atmosphere would come in contact with each o …
- 76.4k
13
votes
Accepted
Can you have a rainbow on any bodies in the solar system besides Earth?
There is a possibility of rainbows appearing naturally on other celestial bodies that have sufficient water vapor or a large number of water droplets in their atmospheres, or indeed gases or droplets …
- 76.4k
7
votes
Accepted
How will Juno establish existence of solid core within Jupiter and determine its size?
Turns out the way they're going to do that is quite a bit different than my initial thoughts, all neatly explained by Bill Nye in one of his Why With Nye videos he did for NASA's Juno mission:
…
- 76.4k
22
votes
Accepted
Why is the Far Side of the Moon so different from the Near Side?
The shielding of the near side of the Moon by the Earth is in all reality quite insignificant, with merely 0.01% of the Moon's sky obstructed by the Earth. If we look at this animation of the speed of …
CommunityBot
- 1