Scientists may soon be able to observe a dramatic, long-predicted consequence of Einstein’s theory of general relativity.
Puzzling planets with the apparent density of cotton candy probably have rings, according to a new study.
That’s when the two stars in the binary system V Sagittae are set to merge in a spectacularly luminous fashion.
The SETI Institute leads the hunt for extraterrestrials, which has entered a new phase with myriad planets to focus on.
The dragon's large belly holds clues about how stars form -- and how the process stops.