An asteroid that orbited near Earth for a few months as a mini-moon may be a chunk of the moon that was blasted off by an ...

Here’s what you should know when you go outside to see for yourself: Yes, the planets are indeed lined up across our sky. No, ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

A chunk of space rock that visited near Earth's orbit last year was widely called a "mini-moon," a nickname that was more ...

Though the planets are always “aligned,” seeing more than four in the sky is more uncommon. February’s lineup is a chance to ...

Both systems include a moon that is a large fraction of the ... 2024 — Like the Earth, the Sun likely has swirling polar vortices, according to new research. But unlike on Earth, the formation ...

For a brief, but exciting, time last year, Earth had two moons. A small asteroid lingered close to our planet in its orbit ...

En route to land on the moon, a spacecraft snapped views of Earth eclipsing the sun. The Blue Ghost lunar lander, built by ...

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...

But surprisingly, the object’s orbit around the sun is similar to Earth’s ... altered by a very close approach with the Earth-Moon system, and then recede away from us on the ‘outside ...