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

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

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

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

Earth reaches its closest point to the sun in its 2026 orbit on Jan. 3. The sun will appear larger in the sky than on any ...

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 first full moon of 2026 is the Wolf Moon. And it’s a supermoon —the fourth in a row! As per the Farmer’s Almanac, it will ...

Chatbots can be overly agreeable. To get less agreeable responses, ask for opposing viewpoints, multiple perspectives, and a ...

Hubble unveils the “Lost Galaxy” as a vibrant spiral alive with newborn stars and glowing clouds of cosmic energy.

For skywatchers, 2026 kicks off with a great chance to view Jupiter at its biggest and brightest, according to NASA’s latest ...

Although it's not as famous as August's Perseids or December's Geminids, January's Quadrantids can be just as prolific. This ...