Search Results - black holes

How Many Black Holes Are There? 

Credit: Depositphotos Estimating the quantity of black holes poses a challenge due to their indirect detectability. Nonetheless, astronomers are diligently working to ascertain the count of black holes in space. Before addressing the question, "How Many Black Holes Are There?" it's crucial to note three types: stellar, intermediate, and supermassive. Each type displays distinct properties...

How a Scientist Weighed Black Holes Invisible to The Naked Eye

Black hole. Credit: Unsplash. Joseph Simon, a postdoctoral researcher at the Department of Astrophysical and Planetary Sciences at the University of Colorado, Boulder, employed computer simulations to make predictions about the masses of the largest supermassive black holes existing in the universe. In a press statement, Simon highlighted the substantial mass of the black hole situated...

Elusive Intermediate-mass Black Holes Take Bites From Stars and Expel the Contents

This artist’s impression depicts a star being torn apart by an intermediate-mass black hole, surrounded by an accretion disk. Image credit: Hubble / NASA / ESA / M. Kornmesser. According to space experts, there is a possibility of the existence of intermediate-mass black holes. These are black holes that can consume some of the stray...

The Current Discovery Sheds Light On Very Early Supermassive Black Holes

This system consists of a pair of galaxies, dubbed IC 694 and NGC 3690, which made a close pass some 700 million years ago. As a result of this interaction, the system underwent a fierce burst of star formation. In the last fifteen years or so six supernovae have popped off in the outer...

How Supermassive Fuel-Hungry Black Holes Feed off Intergalactic Gas

Two interacting galaxies viewed from the Hubble Space Telescope. Credit: NASA/ESA/Hubble Heritage Team A research study led by the College of Southampton has shown how supermassive black holes (SMBHs) are feeding off gas clouds that reach them by traveling hundreds of thousands of light yrs from one galaxy to another. A worldwide team of scientists has...

Doomed Pair of Supermassive Black Holes the Closest to Collision Ever Seen

This artist's conception shows a late-stage galaxy merger and its two newly-discovered central black holes. The binary black holes are the closest together ever observed in multiple wavelengths. Credit: ALMA (ESO/NAOJ/NRAO); M. Weiss, NRAO/AUI/NSF Astronomers have found two ghostly Goliaths en route to a catastrophic meeting. The newly found pair of supermassive black holes are...

At Long Last, Mathematical Evidence That Black Holes Are Stable

Mehau Kulyk / Science Source The solutions to Einstein's formulas that describe a spinning black holes will not explode, even when poked or prodded. In 1963, the mathematician Roy Kerr discovered a solution to Einstein's formulas that precisely described the space-time outside what we currently call a rotating black hole. (The term wouldn't be created for...

Extraordinary Trinary Black Hole System Is the First of Its Kind Ever Found

Credit: Pixabay A Unique Discovery in Cygnus Constellation In the constellation Cygnus, about 7,800 light-years from Earth, lies a true cosmic oddity: the V404 Cygni system, home to a black hole known for its intriguing and unpredictable behavior. Recently, this system revealed yet another surprise to scientists—a hidden binary companion, a star in a wide orbit...

A Cosmic Light Show is Expected Next Year as a Black Hole Devours a Star

An artist's impression of a star circling a supermassive black hole, a repeating event that seems to be at the core of AT2018fykNASA/CXC/M. Weiss Astronomers have observed a supermassive black hole consume a star in two phases and have predicted when it might take a third. If it happens, it could create a fascinating cosmic...

Astronomers Witness the First Activation of a Supermassive Black Hole

A supermassive black hole in galaxy SDSS1335+0728 has lit up, possibly giving astronomers a look at how such beasts are awakened.M. KORNMESSER/ESO For the last four years, astronomers have observed the supermassive black hole at the center of SDSS1335+0728 undergo a transformation from a dim and inactive state to a bright and active one. This...