Scientists think a planet may have crashed into Earth 4.5 billion years ago, creating the moon. This alien planet, Theia, was thought to have completely disappeared in the collision. A new study ...

Recent studies, detailed in publications 'Nature', have identified intriguing anomalies known as large low-velocity provinces within Earth's lower mantle. These structures are theorized to contain ...

Astronomers have long suspected that the Moon formed roughly 4.5 billion years ago when a hefty planet-in-the-making called Theia collided with a young Earth. Now, researchers have found evidence that ...

There may be chunks of an alien planet hiding within Earth. Scientists have long theorized that Earth collided with a planet called Theia 4.5 billion years ago, creating the Moon that we now see every ...

Far beneath Earth’s surface, two enormous structures lie hidden at the edge of the planet’s molten core. These formations, ...

Researchers have long suspected that the Moon was formed after a Mars-sized protoplanet, dubbed Theia, smashed into the primordial Earth some 4.5 billion years ago. The literally Earth-shattering ...

Scientists believe that pieces of an ancient Mars-sized planet known as Theia may be buried deep within Earth’s mantle close to the core, following an ancient collision between the two worlds that ...

There may be chunks of an ancient planet trapped in Earth’s mantle. The prevailing theory of the moon’s formation is called the giant impact hypothesis, in which a Mars-sized object called Theia ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Deep below the Earth’s crust, along the mantle-core boundary, are dense geological ...

New research suggests two colossal blobs buried 2,900 km beneath Africa and the Pacific aren't just geological oddities—they may be the fossilized remains of Theia, a lost planet that helped form the ...