Black Hole

A black hole is a highly dense object in space from which no light can escape. It means the region beyond which there is no return, so we shouldn’t be able to see anything that’s behind the black hole. A discovery contradicts this belief: For the first time, Stanford astrophysicists…

While most of the binary black-hole mergers recently detected by NSF’s Laser Interferometer Gravitational-Wave Observatory (LIGO) in the United States and by the Virgo detector in Italy are expected to consist of first-generation black holes formed from the collapse of stars, others might instead be of second — or even…

by Evan Norris , posted on 28 July 2021 / 1,259 Views Darius fans on Switch and PS4 have been spoiled lately. Last year, Taito and the port masters at M2 released two digital compilations of old-school Darius shoot-em-up titles: an arcade compendium that covers the original three arcade experiences,…

Astrophysicists have detected light coming from the far side of a black hole, using telescopes to see physics predicted by Einstein’s theory of general relativity but not yet directly observed. The new findings affirmed ideas about how black holes warp light. A team of researchers recently inspected the coronal flares…

Watching X-rays flung out into the universe by the supermassive black hole at the center of a galaxy 800 million light-years away, Stanford University astrophysicist Dan Wilkins noticed an intriguing pattern. He observed a series of bright flares of X-rays -- exciting, but not unprecedented -- and then, the telescopes…

When gas falls into a black hole, it releases an enormous amount of energy and spews electromagnetic radiation in all directions, making these objects some of the brightest in the known universe. But scientists have only ever been able to see light and other radiation from a supermassive black hole when…

Home News Science & Astronomy (Image credit: MARK GARLICK/SCIENCE PHOTO LIBRARY) Imagine a galaxy reflected in a fun house hall of mirrors. You'd see the galaxy, repeated again and again, with each image becoming more grotesque and distorted. That's how the universe looks near the event horizon of a black…

Home News Each bright spot in this image, the first all-sky image by eRosita, is black hole or a neutron star. (Image credit: Jeremy Sanders/Hermann Brunner/Andrea Merloni/Eugene Churazov/Marat Gilfanov/IKI/eSASS/MPE)A German-built space telescope is creating the most detailed map of black holes and neutron stars across our universe, revealing more than…

In galactic centers, black holes can be brought to each others’ proximity by dynamic processes, resulting in mergers. It is also possible that black holes formed in previous mergers encounter new black holes, resulting in so-called hierarchical mergers. Until now, such events have only been hinted. Now, scientists at the…

Black holes aren't what they eat. Einstein's general relativity predicts that no matter what a black hole consumes, its external properties depend only on its mass, rotation and electric charge. All other details about its diet disappear. Astrophysicists whimsically call this the no-hair conjecture. (Black holes, they say, "have no…