Researchers from the Max Planck Institute for Solar System Research led the study. They examined iron isotopes in 15 Earth ...

Theia, the world that helped form the Moon, came from the Solar System. Chemical clues in Earth and Moon rocks reveal this ...

For the first time, astronomers have detected a massive eruption — severe enough to devastate the atmosphere of a nearby ...

Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of ...

There are no confirmed exomoons, moons orbiting distant exoplanets in other solar systems. There are a few candidates, but none have passed the threshold and been accepted as confirmed. But they must ...

Astronomers recently detected a stray quasi-moon in our planet’s orbit, but it's hardly the first stowaway to hang out around ...

Farmers who sell to grocery stores typically have to meet high standards, Woods said. For example, there could be onions that ...

About 4.5 billion years ago, a colossal impact between the young Earth and a mysterious planetary body called Theia changed everything—reshaping Earth, forming the Moon, and scattering clues across ...

"The most convincing scenario is that most of the building blocks of Earth and Theia originated in the inner solar system.

"Throwing a close companion into the mix could possibly wreak further havoc on the already complicated processes surrounding ...

A new space telescope with Irish scientific involvement goes into operation this week on a mission to study how stars behave ...

What happens when a planet contains immense quantities of water but is far too hot for that water to remain liquid?