Black Holes

Researchers have found what might be a little red dot transitioning into its final state, where x-rays burst through its gas cocoon. Others argue the object is nothing special

Radio images captured this “cosmic volcano” being reborn at the heart of the galaxy J1007+3540

Puzzling red spots in images from the James Webb Space Telescope are probably young supermassive black holes obscured by dense cocoons of gas

A wobbling jet from a giant, voracious black hole is suppressing star formation in a distant galaxy—and astronomers have never seen anything quite like it before

Black holes and quantum mechanics present a paradox about the preservation of information

A cosmic explosion known as GRB 250702B is by far the longest gamma-ray burst astronomers have ever seen—if it’s even one at all

Huge eruptions from the Milky Way’s supermassive black hole in the distant past may have sterilized much of the inner galaxy

Voracious supermassive black holes light up the cores of “active” galaxies across the universe. How we see them, however, is a matter of perspective

A controversial prediction about black holes and the expansion force of the universe could explain a cosmology mystery

Gauging the mass of a black hole is tricky, but astronomers have devised multiple methods to measure the heft of these galactic gluttons

Spacetime ripples from a black hole collision across the cosmos have confirmed weird aspects of black hole physics

Some black holes get extremely massive. Is there an upper limit to their growth?