Deep in outer space, astronomers have discovered another "odd radio circle" — the latest in a short list of mysterious rings ...

A team of astronomers have found a mysterious object in the distant universe that could be dark matter or an inactive smaller ...

The largest of three newly found ring shaped structures in the cosmos are almost a million light-years across.

Astronomers have detected a mysterious dark object in the distant universe. It could be dark matter, or it could be something ...

Scientists have blown stargazers’ collective minds after discovering a massive dark object in space that’s completely ...

If there is an absolute law in the universe, it’s that nothing can travel faster than the speed of light. Space is big, and ...

Astronomers have identified a rare odd radio circle — twin rings surrounding a galaxy 7 billion light-years away.

A successful builder by day and traversing the sky by night, Isaac Roberts took the first clear photograph of Andromeda, the closest galaxy to our Milky Way.

A mysterious object with a mass equivalent to 1 million suns has been detected in space, but its nature remains unknown.

The object was detected by observing how its gravity distorts light behind it. Astronomers have discovered an extremely faint ...

The Smithsonian's latest collaboration with USA Today celebrates and shares community stories from across the country ...