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

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

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

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

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

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

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

"It was actually a total surprise to find the satellites in that configuration and we still don’t fully understand why they ...

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