What Would Earth’s Temperature Be Like Without an Atmosphere?

OK, a couple of quick points. This is just the surface temperature of the Earth. Since the light from the sun just hits the surface and the Earth radiates from the surface, this ignores any interactions with the very hot molten core.

Also, notice that this is quite a bit colder than the actual average temperature of the Earth (13.9 C)—a 27.1-degree C difference. That’s because the Earth isn’t actually a bare rock. Instead, we have an awesome atmosphere that protects us from what life would be like if the world was actually that cold.

What would Earth be like at that temperature? Well, there are already places on Earth that

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