Supermassive black hole spotted 12.9 billion light-years from Earth ...
3 days ago · Finding one blazar at this distance hints that many other supermassive black holes existed at this point in cosmic history that either had no jets or beamed their radiation away from Earth, study ...
Astronomers Catch Unprecedented Features at Brink of Active Black Hole
4 days ago · A small black hole would plunge straight in, and a normal star would quickly be torn apart by the tidal forces near the monster black hole. But the team found that a low-mass white dwarf — a stellar remnant about as large as Earth — could remain intact close to the black hole’s event horizon while shedding some of its matter.
How Many Black Holes Are Hiding? NASA Study Homes in on …
4 days ago · An effort to find some of the biggest, most active black holes in the universe provides a better estimate for the ratio of hidden to unhidden behemoths. ... If the doughnut hole is facing toward Earth, the bright central disk within it is visible; …
2 newfound black holes are the closest ever to Earth | Space
Apr 4, 2023 · Astronomers have discovered two new black holes that are the closest ones to Earth known, and also represent something that astronomers have never seen before. The black holes, designated...
Black hole - Wikipedia
A black hole is a region of spacetime wherein gravity is so strong that no matter or electromagnetic energy (e.g. light) can escape it. [2] Albert Einstein's theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. [3] [4] The boundary of no escape is called the event horizon.
Hubble Space Telescope finds closest massive black hole to Earth …
Jul 10, 2024 · Hubble has discovered a black hole "frozen in time" that's the closest massive black hole to Earth. The intermediate-mass black hole is a "missing link" between smaller and vastly larger...
Milky Way's biggest stellar-mass black hole lurks close to Earth
Apr 16, 2024 · Astronomers have discovered the most massive stellar-born black hole ever seen in the Milky Way, and it lies relatively close to Earth.
What Are Black Holes? - NASA
Sep 8, 2020 · A black hole is an astronomical object with a gravitational pull so strong that nothing, not even light, can escape it. A black hole’s “surface,” called its event horizon, defines the boundary where the velocity needed to escape exceeds the speed of …
Black Holes - NASA Science
Black holes can be surrounded by rings of gas and dust, called accretion disks, that emit light across many wavelengths, including X-rays. A supermassive black hole’s intense gravity can cause stars to orbit around it in a particular way.
Astronomers Uncover Black Hole Closer to Earth Than Ever Before
Mar 5, 2023 · Astronomers have discovered the closest black hole to Earth, the first unambiguous detection of a dormant stellar-mass black hole in the Milky Way. Its close proximity to Earth, a mere 1,600 light-years away, offers an intriguing target of study to advance understanding of the evolution of binary systems.