Core of a gas planet seen for the first time.

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Astronomers have found a previously unseen type of object circling a distant star.

It could be the core of a gas world like Jupiter, offering an unprecedented glimpse inside one of these giant planets.

Giant planets like Jupiter and Saturn have a solid planetary core beneath a thick envelope of hydrogen and helium gas.

But no-one has previously been able to see what these solid cores are like.

Now, a team of astronomers has discovered what they think are the rocky innards of a giant planet that's missing its thick atmosphere. Their findings have been published in the journal Nature.
https://www.bbc.co.uk/news/science-environment-53250819
 

NonHumanOnboard

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Could be a gradual transition from gas to (a thick) liquid to solid. With the solid core's radius between 2/3 to 3/4. The liquid layer could explain the inability of probes to detect anything, just as the ocean is responsible for the attenuation of radio waves. I mean, such a strong gravity could not be caused by a gaseous content alone, rather by a dense solid mass, could it?
 

jedidia

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I mean, such a strong gravity could not be caused by a gaseous content alone, rather by a dense solid mass, could it?
It's the other way around. Such gravity creates pressures that don't allow any gas to stay in gaseous form.
 
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