Space has a knack for bending our sense of scale. The Moon feels close enough to touch—after all, we see its craters with nothing but our eyes. Yet, that 238,855-mile gap between Earth and its lunar ...

"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." When you purchase through ...

New research suggests that Theia, the object whose collision with Earth is theorized to have caused the formation of the moon, came from closer to the sun. Artist’s impression of the collision between ...

Scientists discover first direct evidence that slivers of 'proto-Earth' may survive today We were wrong about how the moon's largest and oldest crater formed — and that's great news for NASA's next ...

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 ...

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

Surprisingly enough, the moon is a piece of our planet. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The moon is weird. It's completely unlike ...

The Psyche spacecraft is on a six-year journey to reach a metal-rich asteroid by the same name. Well into its voyage, the probe looked back at its home planet and captured a rare view of Earth, ...

Astronomers recently detected a stray quasi-moon in our planet’s orbit, but it's hardly the first stowaway to hang out around Earth. Unlike the Earth's moon, quasi-moons are not gravitationally bound ...