Black Holes

Physicists think the insides of black holes may be complex mazes of tangled strings in higher dimensions

The spins of some early galaxies could be a clue that the entire observable universe exists within a black hole—except, that is, for all the evidence to the contrary

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

The universe’s light-starved early epochs, as well as the first stars and galaxies, lie beyond the reach of conventional observatories but could be revealed by a new generation of radio telescope arrays

Supermassive black holes can expel jets of material so vast and powerful that they may shape the large-scale structure of the cosmos

The universe’s hidden mass may be made of black holes, which could wobble the planets of the solar system when they pass by

A famous prediction that microchips improve exponentially over time can be applicable in unrelated developments, such as the technology used to discover colliding black holes

Images taken by the Hubble Space Telescope point to an elusive intermediate-size black hole in the star cluster Omega Centauri

Astrophysicist Priyamvada Natarajan predicted that black holes can form without the help of stars. New observations support her theory

For the first time, scientists observed matter’s free fall into a black hole’s “plunging region”

How do astronomers find the darkest objects in the universe?

Domain walls, long a divisive topic in physics, may be ideal explanations for some bizarre cosmic quirks