Astronomers have turned the Atacama Large Millimeter/submillimeter Array (ALMA) into a time machine to peer back in cosmic ...

Scientists believe the Milky Way contains up to 400 billion stars and at least as many planets. The largest galaxy known, IC 1101, has more than 100 trillion stars. Step outside on a clear night and ...

Now the diameter of the known universe can be described as 558 billion trillion miles (that’s 558 followed by 21 zeros) or 28 gigaparsecs. If you’re like most astronomers, I’m pretty sure which size ...

A groundbreaking new survey from China’s LHAASO observatory has unveiled powerful ultrahigh-energy gamma-ray emissions across ...

The Milky Way’s swarm of dead, quenched dwarf galaxies stands in stark contrast to satellites of Milky Way-like galaxies in the distant universe, most of which are still birthing new stars.

While this may sound scary, there is little chance humanity will survive to see the end of the universe. In about five ...

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

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

NASA’s SPHEREx mission is mapping the entire sky in 102 infrared colors, turning raw space data into a public tool for ...

For years, scientists have worked to chart the universe’s massive structure, aiming to test key models of cosmology. These ...

Astronomers have found a new way of accurately mapping the outer gas disk of the Milky Way using the positions of young stars ...

A hundred years ago, astronomer Edwin Hubble revealed a universe of galaxies that existed beyond ours. His influence in astronomy continues to this day.