Dear friends, Please read our latest blog post for an important announcement about the website. ❤, The Socratic Team

Why are outer planets gaseous in nature whereas inner planets in our solar system are rocky?

1 Answer
Write your answer here...
Start with a one sentence answer
Then teach the underlying concepts
Don't copy without citing sources


Write a one sentence answer...



Explain in detail...


I want someone to double check my answer

Describe your changes (optional) 200

Apr 12, 2016


Formation of the Solar System.


Our Sun was formed by a rotating cloud of dust and gas called a Nebula mainly due to a nearby gravitational event that collapsed the nebula, more and more matter began to accumulate at the center making it hot enough to support nuclear fusion.

At first the Sun was much more radiant and the Solar system was filled with gas mainly hydrogen. The radiating Sun managed to radiate out that gas from the inner Solar system leaving only the rocky cores which are now also called terrestrial planets.

Sun was radiant but was still not radiant enough to draw that gas out of the outer Solar system and with the passage of time those rocky cores managed to accumulate mantles of gases which are now called gas giants.

Was this helpful? Let the contributor know!
Trending questions
Impact of this question
957 views around the world
You can reuse this answer
Creative Commons License