NASA compares the universe's biggest black holes with "each other and to our solar system," in this Goddard Space Flight ...

Centuries before anyone pointed a telescope at the sky, Isaac Newton figured out how gravity works. He showed that any object ...

For the first time, NASA Chandra X-ray telescope has been used to discover a pair of black holes in dwarf galaxies that are ...

What would a human see and feel while falling into a black hole? In this exclusive excerpt of his new book, "Facing Infinity, ...

NASA’s Mars rover collected rock samples that could reveal if the planet once hosted life. Here’s what scientists plan to do ...

The Knights, rebranded as the “Citronauts” for the Space Game, rattled off an 8-0 record in their first eight Space Games, ...

In 1990 the Hubble Space Telescope was launched that fundamentally changed our understanding of black holes. Kathryn Sullivan, a NASA astronaut, spoke to Witness History about the telescope that ...

The formation, known as the Trou au Natron, lies in northern Chad within the Tibesti Mountains, the highest range in the ...

A cosmic explosion known as GRB 250702B is by far the longest gamma-ray burst astronomers have ever seen—if it’s even one at ...

A 2023 astronaut photo shows off an unusual cranium-like structure appearing to stare up into space from the floor of a large ...

Seeking a destination that blends luxury and extreme skiing becomes a balance between the sublime and the absurd. The goal?

WASHINGTON (AP) — Dick Cheney, the hard-charging conservative who became one of the most powerful and polarizing vice ...