The Milky Way is one of the biggest in the observable universe: Even if you traveled at the speed of light, it would take 100,000 years to go from one end of our home galaxy to the other.

Andromeda XXXV is only about 20,000 times more massive than our Sun—very small, even for a satellite galaxy. For comparison, ...

At the center of our galaxy, hidden behind dense clouds of gas and dust, the black hole Sagittarius A* rotates rapidly, ...

The moon, the Milky Way, Saturn, Venus, Jupiter Mars, Neptune, Uranus and comet C/2024 G3 are all visible at once in ...

There is a supermassive black hole at the center of nearly every big galaxy—including ours, the Milky Way (it’s called ...

Millions of years ago, our Solar System traveled through a densely populated galactic region and was exposed to increased interstellar dust.

SPHEREx hopes to solve some of the universe's biggest mysteries, while PUNCH will study the sun’s outer atmosphere, the ...

Milky Way photography can yield some stunning shots from here on Earth. But what if you had a vantage point at some 400km ...

Astronomers have discovered strong evidence for the closest supermassive black hole outside of the Milky Way galaxy. This ...

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