New research suggests that the largest cosmic structure is even bigger and closer to Earth than we knew. It goes against ...

Researchers link two ancient mass extinctions to nearby supernova explosions, which may have damaged Earth's atmosphere and ...

However, this super-bright spectacle will not happen for about 23 billion years, meaning that humanity will not be around to see it — and there would not be a moon left to compare ... years from Earth ...

Astronomers have tracked a mysterious magnetar, SGR 0501+4516, across the Milky Way, revealing it may not have formed in a ...

"It is larger than the size of most anything to which it might be compared." The universe's largest ... Borealis Great Wall are actually closer to Earth than previously suspected.

Astronomers confirm a wandering black hole in our galaxy’s Sagittarius region using Hubble and Gaia microlensing data.

YR4 made headlines in February with the news that it had a chance of hitting Earth on Dec. 22, 2032, as determined by an ...

In the grand puzzle of the cosmos, one question continues to defy easy answers: how fast is the universe expanding?