There's a universe full of black holes out there, spinning merrily away—some fast, others more slowly. A recent survey of ...

How astronomers used gravitational lensing, a space-time trick predicted by Einstein, to detect a black hole measuring 30 ...

Rather than relying on a cheek swab or a little blood, however, these cosmic DNA tests utilize tiny ripples in the fabric of spacetime called gravitational waves, first proposed by Albert Einstein 110 ...

Black holes that have been obscured by clouds of dust still emit infrared light, enabling astronomers to spot them for the ...

A team that included University of Arizona astronomers captured the infrared image of the supermassive black hole using a Large Binocular Telescope Interferometer.

Astronomers compile a large sample of an unusual class of objects in an effort to connect the dots to the early universe.

Strange x-ray pulses hint at a surprisingly long-lived white dwarf orbiting precariously close to a supermassive black hole ...