These so-called Venus co-orbital asteroids are currently undetected because of their alignment in the sky but could one day drift into Earth’s path, at least according to simulations combining ...

A surprising new study reveals that the first stars appeared in a pre-heated universe, challenging earlier ideas about early cosmic conditions.

October's longer nights bring two transits of Titan across Saturn, while Io and Europa tango together across Jupiter three ...

Ariel, one of Uranus' icy moons, may once have concealed a vast ocean more than 100 miles (170 kilometers) deep beneath its ...

Another “Dome After Dark” event will be highlighted at the University of Wyoming Harry C. Vaughan Planetarium next month.

JWST’s mid-infrared images of Sagittarius B2 uncover dense clouds of cosmic dust hiding active star formation.