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

The recently spotted asteroid 2025 PN7 appears to be the source of the rumor mill about Earth's supposed second moon. Earth has several quasi-moons that get their name due to the fact that they ...

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.

The sun's gravity will pull the moon farther away from Earth than it's been in over five years on Nov. 19, though it'll be ...

Earth obtained a new mini-moon, which is actually a near-Earth asteroid, named 2024 PT, on Sept. 29. The asteroid is estimated to be 33 feet wide, about the length of a school bus and at least 300,000 ...

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 ...

While it was not born the way Earth’s moon was, another celestial body is being deemed by scientists as Earth’s second moon or “mini-moon.” Echoing Ben Kenobi, one famous popularizer of science ...

Dozens gathered in Elysian Park for a free full-moon hike hosted by We Explore Earth, a volunteer-led nonprofit that combines nature access with mindfulness and conservation. The monthly event ...