A mystery interstellar object discovered last week is likely to be the oldest comet ever seen—possibly predating our solar ...

SPHEREx is scanning the entire sky in 102 infrared colors, beaming weekly data to a public archive so scientists and citizen ...

The idea that gravity shapes the universe into nicely bounded superclusters is being overturned by a finding so gargantuan ...

Astronomers have turned the Atacama Large Millimeter/submillimeter Array (ALMA) into a time machine to peer back in cosmic time to 1 billion years after the Big Bang.

The James Webb Space Telescope (JWST) has provided groundbreaking insights into the Bullet Cluster, a cosmic collision zone ...

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