Where do black holes lead?

A black hole is not really a “hole”. A black hole is a celestial body left over from a giant star that has died where its gravity becomes so great…

Was Theia made up of entirely different material than proto-Earth, or did they share most, if not all of the same material?

Some of its pieces are still inside our planet, deep down near the core. But, let’s back up a bit. Theia was a Mars-sized planet that orbited the…

If the sun were to go out, how long would it be before we were completely destroyed?

Just 8 minutes after the Sun went out, every corner of the Earth would be in darkness. The darkness that would be noticeable at midnight would come suddenly…