The leading explanation for all of these mysteries is known as the giant impact hypothesis. According to this story, when the ...

The planet, named Theia, could have collided with our planet billions of years ago and evidence of this event is supposedly found within two blobs far beneath the surface. These blobs have ...

That’s why we have seasons — including the vernal equinox, this year on March 20. That rock has a name: Theia. This requires an explanation. You probably know about the asteroid that smashed into ...

These structures are theorized to contain remnants of Theia's materials ... the stars ‘Snowball Earth’: How volcanoes saved our planet from its deepest freeze in history ...

There's been some new research about an ancient planet - called Theia - that experts think helped form the Earth we know today. Scientists think that Theia crashed into Earth billions of years ago ...

So how did our planet end up with such a special moon ... a Mars-size protoplanet named Theia slammed into the proto-Earth. Artwork of the young Earth-moon system. The Earth had recently formed ...