Looking at this YouTube video (FF to time index 3:00) it occurred to me…if that planet may have been a gas giant that had most of it’s hydrogen and helium atmosphere blown away, how possible is it our own rocky planets of the inner solar system are a result of the same process?
I’m not certain that any of the “solid” planets within the inner part of our solar system are massive enough to have been a core for a gas giant planet. There must be some kind of minimum threshold that must be met in order to form a gas giant. The overall density would probably need to be much greater than any of our wimpy rocky planets I would imagine.
I’ll be curious to see an answer to this myself. It sounds interesting!
Your link is missing, but there is some thought that some of the rocky planets are Gas Giant cores. I don’t believe anyone is suggesting the our 4 inner planets are such though.
What YouTube video? Did you include a link somewhere?
Probably this one.
Yes…sorry.
That’s the one.