Scientists proposed an explanation for the formation of Vallis Schrödinger and Vallis Planck near the lunar south pole, which ...

NASA's Juno spacecraft has discovered a giant volcanic hot spot on the surface of Jupiter's hellish moon Io. The eruptions in ...

Space is already filled with plenty of mysteries, and black holes may be among the strangest. Here are some of the questions ...

Mysterious little red dots threatened to overhaul modern cosmology—but new research may have solved the celestial conundrum.

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Almost a decade after its controversial launch nearly killed any prospects at long-term success, No Man's Sky is gearing up ...