Astronomers have chased hypervelocity stars for more than a century. These rare objects move so fast that the Milky Way ...

Our galaxy's supermassive black hole is famous for being one of the dimmest in the universe. Evidence from a new space ...

Which way is ‘down’ has a different answer depending on where you are on Earth, in the solar system, in our galaxy and beyond ...

On Jan. 15, 2025, the Gaia spacecraft took its last image. Then the craft ran a final round of engineering tests, fired its ...

Globular clusters are often described as ancient, tightly bound fossils of the early Milky Way. It has been believed that ...

Astronomers have signalled the discovery of a planetary body roaming the Milky Way that is not gravitationally bound to the ...

Gaia data reveals signs of planets forming around young stars by measuring stellar motion, identifying planetary, brown dwarf, and stellar companions in early star systems ...

The “Seven Sisters” of the Pleiades are part of a much larger complex that can help reveal our galaxy’s deep history ...

This understanding changed when Dikerby and his team pointed XRISM toward a large gas cloud near the galactic center.

In the shockwave, a red hue represented hydrogen, green represented nitrogen, and blue represented oxygen residing in ...

Their analysis showed that the planet lies about 3,000 parsecs, or just under 10,000 light-years, from Earth. Its mass is ...

Curious Kids is a series for children of all ages. If you have a question you'd like an expert to answer, send it to ...