But with talk of future space colonies and cities on Mars, there's a good chance that one day humans will give birth somewhere beyond Earth, and that brings up some interesting questions.

In other words, if scientists can show that Earth's core contains a lot of helium-3, it will strongly suggest that the planet ...

We have discovered the oldest meteorite impact crater on Earth, in the very heart of the Pilbara region of Western Australia.

To understand the fascinating mechanics of the collision of India with Asia we must first look beneath the Earth's surface. The continents are carried by the Earth's tectonic plates like people on ...

Scientists discover Earth may have huge quantities of helium trapped in its core after finding it can mix with iron under extreme heat and pressure. . | Credit: Yuri_Arcurs via Getty Images ...