"The most convincing scenario is that most of the building blocks of Earth and Theia originated in the inner solar system. Earth and Theia are likely to have been neighbors." ...

Moon has been Earth’s celestial companion for over four billion years. However, the formation of this natural satellite was catastrophic. It was long believed that the Moon was born from a cataclysmic ...

"During the early solar system's game of cosmic billiards, Earth was struck by a neighbor,” said Dauphas. “It was a lucky shot. Without the moon's steadying influence on our planet's tilt, the climate ...

About 4.5 billion years ago, Earth had a violent neighbor. A young, still-forming planet named Theia slammed into our world ...

Conventionally, the moon is thought to have formed during one big impact, but a three-impact model might make more sense ...

A new scientific study is rewriting one of the most recognized origin stories in astronomy: how the Moon was formed may not have been quite the way generations of researchers thought. Emerging ...

In the current issue of the journal Science, researchers determine the possible composition of Theia. The impactor’s composition allows conclusions about its place of origin. It is located in the ...

Over 4.6 billion years ago, Earth took shape from a spinning cloud of dust and gas surrounding the young sun. Tiny particles within this cloud collided and clumped together, driven by gravity and ...

Hakuto-r captures a rare “terrestrial sunrise” during a total eclipse just before crashing into the Moon, revealing the ...

The full moon on Thursday - known as the Cold Moon - will align almost perfectly with its closest approach to Earth.