Concerning the Earth's early atmosphere

[Troparion]

Hello everyone and happy new year!

I'll make it quick. Supposing that we could somehow visit the early Earth, could we see the stars or the Sun? Was the atmosphere ever so dense and full of gases that would hide the light of the stars?

Thanks in advance.

 

[Xnn]

The early Earth was so hot that water would have existed as vapor and clouds.
Although there was probably not as much water on Earth as there is now, it could have easily formed a thick enough atmosphere to obscure the sun.