Floating around at the edge of the Solar System are leftovers from its formation. This is the Kuiper Belt, which is composed ...

A newly identified Kuiper Belt trio, possibly only the second of its kind, could provide strong evidence that these distant ...

NASA’s newest space telescope rocketed into orbit Tuesday to map the entire sky like never before — a sweeping look at ...

It's a new type of three-body problem for astronomers, who used the Hubble Space Telescope to determine that twin asteroids ...

Over the last 10 years, the Hubble Space Telescope has taken pictures of Altjira and a 2011 study found that it appears as ...

Can asteroids orbit each other in pairs of three, also called a three-body or triple system, like stars? This is what a ...

The puzzle of predicting how three gravitationally bound bodies move in space has challenged mathematicians for centuries, ...

A new image from the Hubble Space Telescope shows one of the most famous and beautiful objects in the night sky.

NASA's Hubble Space Telescope has discovered that ... the doughnut-shaped region of icy bodies that lurks out beyond the orbit of Neptune. The discovery could also challenge our understanding ...