If you wait even longer, eventually the stars will all burn out – stars like the sun last only about 10 billion years.

Planetariums were a hit with the public. Within decades, they had spread around the world – the first planetarium in the ...

University of Arizona astrophysicist Erika Hamden takes readers on a romp through a "Weird Universe" in her debut popular ...

The universe has two kinds of matter. There is invisible dark matter, known only because of its gravitational effects on a ...

A vast filament of gas stretching across the cosmos may help solve the mystery of the Universe’s missing matter. Astronomers ...

"We have discovered a galaxy that has been 'perfectly preserved' for billions of years, a true archaeological find that tells ...

The first test images from the Vera C. Rubin Observatory in Chile showcase thousands of previously unknown asteroids and ...

Astronomers have uncovered a colossal, searing-hot filament of gas linking four galaxy clusters in the Shapley Supercluster a ...

A team of astronomers have put together the largest, most detailed map of the universe ever created – and you can explore it ...

Astronomers unveiled the first images of distant galaxies from an advanced telescope, opening a new era in space discovery.

Two studies fill in gaps about the cosmos’s ordinary matter. One maps it all, even the “missing matter.” The other details one of its hiding spots.