Ever wondered how we know all this?

This is what you see in this image:

  1. Upper atmosphere, top clouds.
  2. Atmosphere consisting of hydrogen, helium, and methane gas.
  3. Mantle consisting of water, ammonia, and methane ices.
  4. Core consisting of rock (silicates and nickel-iron).

I have taken this information straight from the source (link below).

I still can’t fathom sometimes, how on Earth – as it were – we know all of this. This is the inside of the outermost planet in the solar system. I mean, like, huh?!?!!

Image source

Image credits: FILNASA; Pbroks13 (redraw)

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