This stunning photo was taken on January 29, 2025, from 265 miles (425 km) above the Pacific Ocean. Pettit, a seasoned ...

Astronauts aboard the International Space Station (ISS) have a front-row seat to some of the most extraordinary sights in the ...

The inner Oort cloud, between 1,000 and 10,000 AU from the sun, displays a spiral formation with arms that extend 15,000 AU.

Astronomers have spotted displays of flashing lights and “fireworks” near a supermassive black hole at the center of the ...

Scientists observed constant flares from the Milky Way's black hole, revealing unpredictable and intense activity.

Editors' note: Samsung has also unveiled the Galaxy S25 and S25 Plus ... just as good as the S25 Ultra in pretty much every other way. Every phone tested by CNET's reviews team was actually ...

I began photographing the Milky Way around 2018, but the hobby took off in earnest for me at the onset of the COVID years as I took myself out to remote dark sites to capture images. For many ...

a blue dwarf galaxy shot through the center of an enormous galaxy more than twice the size of the Milky Way, called LEDA 1313424. Now, astronomers have revealed the spectacular result of this ...

Scientists have discovered an enormous radio galaxy 32 times the size of the Milky Way. They nicknamed it "Inkathazo," or "trouble," as the team struggles to understand the physics behind it.

This event can be likened to a dart striking the Bullseye in a game of Knockout at a local pub.

You could fit our entire Milky Way galaxy between them and still have room to spare. At 250,000 light-years across, the Bullseye itself is more than twice the size of the Milky Way. There was luck ...

How big is the Bullseye? Our Milky Way galaxy is about 100,000 light-years in diameter, and the Bullseye is almost two-and-a-half times larger, at 250,000 light-years across. The researchers used ...