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

New research suggests that Theia, the object whose collision with Earth is theorized to have caused the formation of the moon ...

Discover how scientists have used iron isotopes to determine the likely origin of the Mars-sized planet named Theia.

How did the Moon form? Was it from a collision, as has been the longstanding theory, or could it have been captured by the Earth early in our planet’s formation? This is what a recent study published ...

The moon's orbit isn't a perfect circle. Instead, it's more stretched out, kind of like an oval, which means its distance from Earth varies by about 30,000 miles (48,000 km). The surface of the moon ...

The findings suggest that similar moonlets could orbit distant exoplanets and their moons. researchers said. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Francis Nimmo, University of California, Santa Cruz (THE CONVERSATION) A physicist, a ...

A physicist, a chemist, and a mathematician walk into a bar. It sounds like the start of a bad joke, but in my case, it was the start of an idea that could reshape how scientists think about the ...

Did the Moon’s geological activity stop billions of years ago after it formed, or has it been active since then? This is what a recent study published in The Planetary Science Journal hopes to address ...

New research published today in the journal Nature Astronomy reveals a type of destructive event most often associated with disaster movies and dinosaur extinction may have also contributed to the ...