Theoretical physicist Alex Lupsasca is pushing for a space telescope to glimpse the thin ring of light that is thought to surround every black hole.

Asteroids, comets, and clouds contain complex organic molecules that form in space and might have kickstarted life on Earth ...

Special Report: As US emphasis on domestic rare earths production continues to build, Lodestar Minerals is acquiring the ...

V Sagittae’s violent mass transfer hints at an imminent nova—and a future supernova visible from Earth. Binary star systems are fairly common in the universe, as are pairs where one star is a compact ...