Solar system poster points out a

Solar System

How Venus Ended Up with a Mini-Moon Named Zoozve

A quasi-satellite of Venus has just received an unusual name.

Chipping the Moon

Solar System

Has a Stray Piece of the Moon Become a Quasi-satellite of Earth?

A quasi-satellite of Earth, named Kamoʻoalewa, might actually be a chip off our Moon.

The orbit of 2016 HO3

Solar System

Newfound Object 2016 HO3 Shares Earth's Orbit

A recently discovered asteroid plays leapfrog with Earth as they both orbit around the Sun.

Pluto system

Solar System

Pluto's Fake Moon

Astronomers think a small body in the Kuiper Belt might be temporarily spiraling around Pluto — well, that's what it would look like if you were standing on Pluto, anyway.