In 2029, one of the solar system's many asteroids will pass Earth close enough to see with the naked eye. But asteroid ...

BS4 may be anywhere between 17 and 40 feet across, and will approach at about twice the distance between the Earth and moon.

Chorus waves are mysterious, chirping signals produced by spiraling plasma inside our planet's magnetic field. But a new ...

"There are still many things related to planetary formation and the early evolution of young planetary systems that we don't ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but get a telescope and you can spot Neptune and Uranus.

PT5, a near-Earth object discovered last year, has captivated scientists with its potential lunar origins. Likely ejected ...

For a few months, Earth had a second moon — a tiny asteroid that may have been a piece of our own Moon ...

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 ...

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

Starting at 12:30 p.m. ET (1730 GMT) on Saturday (Jan. 25), astrophysicist Gianluca Masi of the Virtual Telescope Project ...