Quasi-moons are not real moons and don't actually orbit the Earth, although they sometimes appear to do so for short periods of time, Phil Nicholson, professor of astronomy at Cornell University, told ...

The 6%-lit waxing crescent moon will be visible roughly 5 degrees above the horizon as the sun sets on Oct. 23, with Mercury ...

Astronomers have spotted a quasi-moon near Earth — and the small space rock has likely been hanging out near our planet ...

Our solar system now, once again, officially consists of only eight planets. Although largely debunked, speculation continued ...

The Earth often gets a few visitors in the solar system, but some stick around for a while. Here's what to know about the ...

Astronomers have spotted a quasi-moon near Earth — and the small space rock has likely been hanging out near our planet ...

Astronomers have discovered a new quasi-moon of Earth, Arjuna 2025 PN7. The asteroid belongs to a family that shares Earth's ...

He envisioned these ‘stationary’ satellites acting as relays for radio and television signals, connecting the whole world.

According to one hypothesis, the comet is responsible for giving humans the swastika symbol, thousands of years in the past.

A rare encounter of two comets this week will have stargazers in awe after nearly a year of no easily seen comets.

Voyager 1 is going to achieve another monumental feat in a few weeks -- it will be the first spacecraft to travel a light day ...

Mars is closer than ever, but the human body isn’t ready. Inside the biological war against radiation, microgravity, and ...