Dark matter doesn't absorb or give off light so scientists can't study it directly. But they can observe how its gravity ...

Deep Space Just Revealed a Mysterious Object Astronomers Can’t Explain ...

A strange X-ray beacon from deep space has revived a decades-old mystery and opened a window onto one of the universe’s most violent possibilities. Astronomers now suspect that this flicker in the ...

"If they were purely made up of stars, they would be the densest galaxies in the universe." ...

Scientists recently discovered a mysterious object in outer space that, for a time, was sending out regular bursts of energy in a way that researchers hadn't previously observed. According to an ...

Add Yahoo as a preferred source to see more of our stories on Google. This image shows the location of Cloud-9, which is 2000 light-years from Earth. The diffuse magenta is radio data from the ...

"Stars like the sun don’t just stop shining for no reason." ...

A strange gamma-ray glow emanating from the heart of the Milky Way could be the long-sought fingerprint of dark matter particles annihilating each other, evidence suggests. A new research effort ...

More information about a mysterious, energetic burst, formally known as a gamma-ray burst (GRB), spotted in space 13 billion light-years away from Earth, has been unveiled. The first sighting of this ...

One of the James Webb Space Telescope’s (JWST) earliest mysteries was that of the little red dots, which researchers have ...