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 ...

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

Simpson and Chen ran mathematical models looking at how differently sized Earth-like worlds would have affected the rest of ...

New research has revealed that Hot Jupiters do not always push away or destroy nearby planets during their migration. This ...

Stargazers will be treated to a dazzling six-planet "alignment" this January.

Planetary alignments aren't rare, but they can be when they involve six of the eight planets in our solar system.

A private U.S. spacecraft has captured stunning images of Earth one week into its flight. Still circling Earth, Firefly ...

Stargazers who haven't had a chance to check out this month's planet parade will want to look up soon because there's ...

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A near-Earth object was likely ejected into space after an impact thousands of years ago. Now it could contribute new ...

The BBC reports that the six planets are already visible in the night sky, with one more bonus planet (Mercury) joining the ...