Tagged: black holes

On Sept. 9, 2018, astronomers spotted a flash from a galaxy 860 million light years away. The source was a supermassive black hole about 50 million times the mass of the sun. Normally quiet, the gravitational giant suddenly awoke to devour a passing star in...

An open question among the physics community is whether black holes can be tidally deformed by an external gravitational field. If this were confirmed to be true, it could have important implications for many areas of physics, including fundamental physics, astrophysics and gravitational-wave astronomy. Researchers...

Scientists have found an unusual void hiding in plain sight. Scientists have spotted the closest black hole to our solar system so far, and unlike the supermassive monster that was the subject of a historic photo in 2019, this hungry little beast is much smaller...

If you’re a longtime reader of CNET Science, you know we’re very, very interested in black holes. Last week, we were fascinated by the tiny “unicorn” black hole discovered close to Earth. One of the best and most visually impressive science channels on YouTube is...

Using polarized light, researchers with the Event Horizon Telescope collaboration reveal the environment close to the famous, mammoth black hole. When the Event Horizon Telescope captured the very first image of a black hole at the center of the Messier 87 galaxy around 53 million...

PhysOrg.com) — A curious correlation between the mass of a galaxy’s central black hole and the velocity of stars in a vast, roughly spherical structure known as its bulge has puzzled astronomers for years. An international team led by Francesco Tombesi at NASA’s Goddard Space...

  The center of the Milky Way is a puzzle of invisible, interconnected blobs. There are swooping tendrils of energy visible only in radio wavelengths, hourglass-shaped scars of X-ray light and — towering over it all — the mysterious Fermi Bubbles. These twin orbs of...

A tight knot of stars nearly as old as the universe hides a dark secret at its core. The globular cluster NGC 6397, a conglomeration of stars about 7,800 light-years from Earth, likely harbors a clump of small black holes at its heart, a new...

To answer this question, first we need to look at what black holes are and how they work. A black hole is what remains when a massive star dies. A massive star usually has a core that’s at least three times the mass of the sun. Stars are huge, amazing fusion reactors....

  SCIENTISTS have found the biggest black holes known to exist – each one 10 billion times the size of our sun. A team led by astronomers at the University of California, Berkeley, discovered the two gigantic black holes in clusters of elliptical galaxies more...