Earth’s violent collision with a protoplanet may have given birth to the Moon. Discover the giant-impact theory and the ...

In the mid 1970s, researchers proposed the Giant Impact Hypothesis. The new impact scenario envisioned that at the end of its formation, Earth collided with another planet-sized body. This ...

A recent studypublished in Naturepresents compelling evidence of ancient planetary material buried deep within Earth’s mantle ...

As one of Earth’s most familiar sights in the sky, the moon has inspired billions of people to gaze upward in wonder. Early in humanity’s history, we constructed myths about this silvery orb ...

This is known as the giant-impact hypothesis. While many scientists support this hypothesis, they are still looking for more information to understand exactly how the moon came to be. During Nasa ...

The prevailing theory of the moon’s formation is called the giant impact hypothesis, in which a Mars-sized object called Theia slammed into Earth and was blown to bits, creating the moon from ...

The theory, called the giant-impact hypothesis, explains many fundamental features of the moon and Earth. But one glaring mystery at the center of this hypothesis has endured: What ever happened ...

Scientists believe a colossal impact between Earth and Theia formed our lunar companion 4.5 billion years ago.

In the giant impact hypothesis, one of these bodies, named Theia, collided with the Earth, resulting in the formation of a disc of debris circling the Earth after the collision. Some of the ...

One theory in particular, the giant impact hypothesis, has gained popularity. While the moon's composition is similar to Earth's, samples brought back by NASA's Apollo missions revealed that our ...