The leading explanation for all of these mysteries is known as the giant impact hypothesis. According to this story, when the ...
The ancient planet, known as Theia (or sometimes Orpheus), was completely destroyed. The majority of its mass and a part of ...
We do not know for sure if Theia existed and if it collided with the young proto-Earth, but the evidence is compelling. For one, we are the only rocky planet with a substantial moon. Mercury and ...
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 ...