All Questions
Tagged with gas-giants solar-system
15
questions
8
votes
1
answer
617
views
If the fifth gas giant in the early Solar System was completely ejected, where would it be now?
I've read about the possible 5th gas giant in the Solar System, and about its ejection about ~100 million years after the formation of the Solar System. However, I have not seen anything about its ...
- 6,684
6
votes
1
answer
834
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Why do the solar system planets go rock-gas-ice instead of rock-ice-gas when moving away from the sun?
The sun and the solar wind seem to do a good job of fractionating lighter materials to the outer solar system and leaving heavier materials in the inner solar system. So we end up with rocky/metallic ...
- 1,379
1
vote
0
answers
78
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Satellite grids around other planets [closed]
We send a lot of rovers to Mars, as interesting as the planet could possibly be. But why are we not putting satellite grids around planets that could transmit superficial probe data at the very least?...
- 11
14
votes
3
answers
7k
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Why does each and every planet of our solar system have an unique axial tilt angle?
Why do planets have an axial tilt? From the above image we can see that each planet's axial tilt angle varies and differs from the others.
What was the cause of this, was this from the beginning of ...
- 904
10
votes
1
answer
3k
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Why do Uranus and Neptune have more methane than Jupiter and Saturn?
So the standard theory of the solar nebula is that in the region of the gas planets, ice and rock could condense to form planetesimals, which could then accrete hydrogen and helium to form the gas ...
- 255
6
votes
1
answer
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What is the reason the Jovian planets are in descending order of size?
Is there any scientific reason for the jovian planets to be in descending order of size or is it purely coincidental? In terms of radii it goes Jupiter, Saturn, Uranus and Neptune.
- 367
1
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2
answers
765
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If gaseous planets have solid core, can they theoretically be considered as rocky planets?
I read that gaseous planets such as Jupiter and Saturn, have a solid core deep inside. So, I wondered whats the difference between them and rocky planets apart from the fact that they have - what can ...
- 169
14
votes
2
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2k
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How can clouds form in Jupiter's atmosphere of Hydrogen and Helium?
Here is a graphic of cloud layers of Jupiter (source: Wikipedia):
There are three distinct cloud layers of ammonia, ammonium hydrosulfide, and water. The temperature and pressure conditions seem to ...
- 431
5
votes
3
answers
1k
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Why do the gas giants in the Solar System have comparatively large orbits compared to the inner planets?
Ever since I observed the depictions of the Solar System, I was obsessed with the question of why the gas giants (outer planets) have very large orbits, compared to the planets that are closer to the ...
- 190
5
votes
0
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143
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Would the existence of Planet Nine rule out the possibility of a sixth giant planet?
I'm aware that there have been attempts to simulate the evolution of the Solar System with six giant planets1, as opposed to the traditional four or five. The recent proposed Planet Nine would ...
- 37.3k
1
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1
answer
3k
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Do the terrestrial planets form later than gas giants in our solar system?
Sorry I forgot where this statements come from, but I also remember the reason behind it is due to young Jupiter moves inwards and destroys the original super earth in inner solar system, and the ...
- 2,229
7
votes
1
answer
808
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Could an ejected "extra ice-giant" still be lurking in distant solar orbit?
BACKGROUND
Hot Jupiters are thought to have migrated inwards, implying that another giant planet has been ejected in order to conserve the orbital momentum of those planetary systems. The number of ...
- 11.4k
3
votes
0
answers
44
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Do the planetary ring lasts? [duplicate]
Almost all gas giants in our solar system are observed to have a planetary ring comprises of ice, dust and rocks. My question is do these rings obediently sticks around their foster parent until our ...
- 2,501
6
votes
2
answers
6k
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Why are gas giants colored the way they are?
As I understand it, Jupiter, Saturn, Uranus, and Neptune are all made primarily from varying proportions of hydrogen and helium. Despite this, Jupiter is very red, Saturn is yellow, and Uranus and ...
- 2,673
5
votes
1
answer
606
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Why are the natural satellites (moons) of all planets solid?
Why are the natural satelites (moons) of all planets - including the moons of the gas giants - solid or rocky, and not gaseous?
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