The speedster travels at up to 56 million miles per hour, or about 8 percent the speed of light. It also gets very close to ...

In dark skies at night, distant starlight twinkles and speaks to vast cosmic histories almost as old as time itself. New data ...

The James Webb Space Telescope has identified the most promising candidate yet for a black hole star, lurking 660 million ...

At 15,500 miles per second, it’s the fastest planet or star ever observed by science, but its true value is how close it is ...

They are massive, and extremely dense. They rip apart anything and everything that gets close to them. Their gravity is so ...

A supermassive black hole appears to be racing away from its galaxy at nearly 1,000 kilometers per second, leaving a ...

The star's orbit appears to be closely linked to the black hole's spin—a characteristic of black holes astronomers have long ...

Astronomers have found stars that repeatedly skim past supermassive black holes, surviving each encounter while producing a ...

A star that passes somewhat farther from the black hole can escape complete destruction while still losing part of its mass, ...

At the center of most galaxies lies a supermassive black hole, with a mass millions to billions of times that of our sun and some of the most extreme gravity in the universe.

The rogue super-massive black hole compresses gas in its wake, forming a long “contrail” of young, blue stars. This unusual ...

Every galaxy has a supermassive black hole at its center, much like every egg has a yolk. But sometimes, hens lay eggs with two yolks. In a similar way, astrophysicists like us who study supermassive ...