Hypervelocity stars have, since the 1920s, been an important tool that allows astronomers to study the properties of the ...

Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...

While most planets that we are familiar with stick relatively close to their host star in a predictable orbit, some planets ...

The discovery is the first direct observational confirmation of a theory for how young stars feed on, and then explosively ...

Most of the planets we’ve identified are in orbit around stars and formed from the disks of gas and dust that surrounded the ...

It’s the greatest cosmic murder mystery of the year: How did a black hole destroy a star—and what kind of black hole is the culprit? Normally, so-called “gamma ray bursts,” sudden flashes of extremely ...

The Quadrantids will be harder to see than usual due to the bright full moon. Here's how to get the best views.