"The universe is filled with a range of three-body systems, including the closest stars to Earth, the Alpha Centauri star ...

The agency is encouraging astronomy clubs to throw “star parties” to introduce people to the nebulae and galaxies spotted by ...

As it nears 35 consecutive years of space service, the NASA/ESA Hubble Space Telescope has taken another look at a famous ...

The puzzle of predicting how three gravitationally bound bodies move in space has challenged mathematicians for centuries, and has most recently been popularized in the novel and television show "3 ...

Previous examinations using ground-based tools as well as the Hubble and Spitzer space telescopes indicated SIMP 0136 was ...

"Everything scattered in the Andromeda system is very asymmetric and perturbed. It does appear that something significant ...

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

A placid fishing trip turned "berserk" for three New Zealand men when a dolphin weighing more than 400 kilograms (900 pounds) ...

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

The Hubble Space Telescope captures stunning imagery of barred spiral galaxy UGC 678. The galaxy is located about 260 million light-years away from Earth in the Pisces constellation. Credit: Space.com ...

Here's everything you need to know about why Saturn's rings are about to disappear — and when they will return.

SPHEREx is set to launch at Friday from California. Here are five things to know about NASA's latest advanced space telescope ...