A detailed simulation of Theia crashing into Earth. While the collision was violent, it was not energetic enough to melt the Earth's lower mantle -- meaning that remnants of Theia could be ...

It’s one of the questions contemplated in “Alien Earths ... and the giant collision between Earth and a protoplanet named ...

These structures are theorized to contain remnants of Theia's materials ... and people on Mars 'Three-fingered beings on Earth': Alien mummies in Peru linked to unknown DNA ‘Kissing at 1,000 ...