Black Holes Current Events

Black Holes Current Events, Black Holes News Articles.
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Hiding black hole found
Astronomers have detected a stealthy black hole from its effects on an interstellar gas cloud. This intermediate mass black hole is one of over 100 million quiet black holes expected to be lurking in our Galaxy. These results provide a new method to search for other hidden black holes and help us understand the growth and evolution of black holes. (2019-02-28)

Black holes: Scientists 'excited' by observations suggesting formation scenarios
Physicists have described how observations of gravitational waves limit the possible explanations for the formation of black holes outside of our galaxy; either they are spinning more slowly than black holes in our own galaxy or they spin rapidly but are 'tumbled around' with spins randomly oriented to their orbit. (2017-08-23)

Scientists find black hole 'missing link'
Scientists at Durham University have found the (2008-09-17)

Researchers find black hole in globular cluster
Last year when a team of astronomers led by a Michigan State University professor discovered two black holes in a collection of stars known as a globular cluster, they weren't sure if their presence was a common occurrence or a unique stroke of luck. (2013-11-05)

Escaping gravity's clutches: The black hole breakout
New research by scientists at the University of York gives a fresh perspective on the physics of black holes. Conventional thinking asserts that black holes swallow everything that gets too close and that nothing can escape, but the study by professor Samuel Braunstein and Dr. Manas Patra suggests that information could escape from black holes after all. (2011-08-10)

Yale astronomer discovers upper mass limit for black holes
There appears to be an upper limit to how big the universe's most massive black holes can get, according to new research led by a Yale University astrophysicist. (2008-09-11)

Polaroid sunglasses let astronomers take a closer look at Black Holes
An international team led by an Edinburgh astronomer have discovered that by studying polarised light from black holes they can focus much more closely on what exactly is going on around them. (2004-11-10)

Proto supermassive binary black hole detected in X-rays
An international team of astronomers led by D. Hudson from the University of Bonn has detected a proto supermassive binary black hole in images of NASA's Chandra X-ray observatory. They found that these two black holes are gravitationally bound and orbit each other. Their results will be published in an upcoming issue of Astronomy & Astrophysics. (2006-04-06)

Do black holes have hair?
Black holes may be less simple and (2013-09-30)

OU astrophysicist and collaborators find supermassive black holes in quasar nearest Earth
A University of Oklahoma astrophysicist and his Chinese collaborator have found two supermassive black holes in Markarian 231, the nearest quasar to Earth, using observations from NASA's Hubble Space Telescope. The discovery of two supermassive black holes -- one larger one and a second, smaller one -- are evidence of a binary black hole and suggests that supermassive black holes assemble their masses through violent mergers. (2015-08-27)

Astronomers find evidence for tens of thousands of black holes
UCLA astronomers present the first evidence that tens of thousands of black holes are orbiting the monstrous black hole at the center of the Milky Way, 26,000 light years away. Michael Muno, a UCLA postdoctoral Hubble Fellow, has studied the inner 75 light-years of the Milky Way, searching for bright X-ray sources likely to be accreting black holes and neutron stars, using NASA's Chandra X-ray Observatory. (2005-01-10)

Mammoth collision of `impossible' black holes detected for the first time
The most massive black hole collision ever detected has been directly observed by the LIGO and VIRGO Scientific Collaboration, which includes scientists from The Australian National University (ANU). (2020-09-02)

Sleeping giants discovered
Astronomers recently discovered the most massive black holes to date. Found in two separate nearby galaxies roughly 300 million light years away from Earth, each black hole has a mass equivalent to 10 billion suns. (2011-12-06)

Sleeping giants discovered
Astronomers recently discovered the most massive black holes to date. Found in two separate nearby galaxies roughly 300 million light years away from Earth, each black hole has a mass equivalent to 10 billion suns. (2011-12-12)

Discovery of the closest binary supermassive black hole system in the galaxy NGC 7674
Scientists from NCRA-TIFR, Pune, and RIT, USA, have discovered the closest ever binary supermassive black hole system in a spiral galaxy NGC 7674, located about 400 million light years from Earth. The apparent separation of the two black holes in the binary system is less than one light year. This is direct observational proof of the existence of close supermassive black hole binary systems inside galaxies, which are potential sources of gravitational waves. (2017-09-19)

Movement of black holes powers the universe's brightest lights
Research finds that black holes' spin and lateral movement can power bright jets of light known as quasars. (2011-07-20)

Universe's hidden supermassive black holes revealed
Astronomers have found evidence for a large population of hidden supermassive black holes in the universe. (2015-07-05)

Dense molecular gas disks drive the growth of supermassive black holes
A joint team of University of Tokyo researchers and their collaborators, using ALMA and other telescopes that utilize radio waves for space observation, revealed that dense molecular gas disks a few hundred light years in scale located at the centers of galaxies supply gas to supermassive black holes situated within them. This finding provides important insights on the growth of supermassive black holes over cosmic time. (2016-10-13)

Cookie cutter in the sky
After culling the literature for observed black holes, McKernan and colleagues looked at 245 active galactic nuclei to characterize the shape of material swirling around them. The result: active galactic nuclei look like donuts, funneling from a dark center. This observation should constrain theories about how the material around black holes is produced and eventually allow scientists to study black holes themselves. (2008-12-16)

Curtains down for the black hole firewall paradox
Research by scientists at the University of York has revealed new insights into the life and death of black holes. (2013-03-06)

A massive black hole has been found at the center of an ultra-compact galaxy
A team of researchers, including an astronomer from Michigan State University, has discovered a huge black hole at the center of an ultra-compact galaxy -- the smallest galaxy known to contain one. (2014-09-17)

Black hole jets pack a powerful punch
High-speed 'jets' spat out by black holes pack a lot of power because they contain heavy atoms, astronomers have found. (2013-11-24)

Baby booms and birth control in space
Stars in galaxies are a bit similar to people: during the first phase of their existence they grow rapidly, after which a stellar birth control occurs in most galaxies. Thanks to new observations from Dutch astronomer Mariska Kriek with the Gemini Telescope on Hawaii and the Very Large Telescope in Chile, it is now known that a part of the heavy galaxies already stopped forming stars when the universe was still a toddler, about three billion years old. (2007-09-25)

Surprising black-hole discovery changes picture of globular star clusters
Astronomers using the Very Large Array didn't find what they were looking for, but got a surprise that is changing their understanding of globular star clusters. (2012-10-03)

NASA's Chandra finds black holes are 'green'
Black holes are the most fuel efficient engines in the universe, according to a new study using NASA's Chandra X-ray Observatory. By making the first direct estimate of how efficient or (2006-04-24)

Astronomer Finds Evidence Of Binary Black Holes
From studying the velocities of gases surrounding blackholes in distant galaxies, University of Nebraska-Lincoln astronomer Martin Gaskell has found evidence that pairs of giant black holes exist in many galaxies. His conclusion is based on changes in the apparent velocities of gases as two black holes move about each other. (1996-06-18)

The last cry of matter
'Black holes' are truly black. When an object gets within a certain distance from a black hole, it will get swallowed forever with no chance to escape. That includes light, which means that black holes do not shine. (2003-11-27)

Planets around a black hole?
Theoreticians in two different fields defied the common knowledge that planets orbit stars like the Sun. They proposed the possibility of thousands of planets around a supermassive black hole. (2019-11-25)

NYU physicist Dvali awarded $1.5 Million grant to investigate properties of black holes
NYU physicist Georgi Dvali has been awarded a $1.5 million grant by the European Research Council to investigate the properties of black holes. The work will build upon a physical property theorized by Albert Einstein and his colleague Satyendra Nath Bose. (2013-10-02)

Black hole spin cranks-up radio volume
Statistical analysis of supermassive black holes suggests that the spin of the black hole may play a role in the generation of powerful high-speed jets blasting radio waves. By analyzing nearly 8000 quasars from the Sloan Digital Sky Survey, research team found that the oxygen emissions are 1.5 times stronger in radio loud quasars than in radio quiet quasars. This implies that spin is an important factor in the generation of jets. (2018-01-12)

Did the LIGO gravitational waves originate from primordial black holes?
Binary black holes recently discovered by the LIGO-Virgo collaboration could be primordial entities that formed just after the Big Bang, report Japanese astrophysicists. If further data support this observation, it could mark the first confirmed finding of a primordial black hole, guiding theories about the beginnings of the universe. (2016-07-26)

Astronomers discover earliest black holes at dawn of universe
A team of astronomers has discovered the earliest black holes ever detected, despite the fact that they are hidden from view by their host galaxies. They also measured the average growth rate of the black holes and discovered that they grow and evolve in tandem with their galaxies -- something that astronomers had observed locally but which they knew little about when it came to the early, distant universe. (2011-06-15)

Astronomer gets grant to better measure mysterious black holes
Black holes, the high-gravity phenomena of galaxies from which no light can escape, will be better measured thanks to a $862,769 National Science Foundation grant to a Georgia State University astronomer. (2013-03-18)

The Milky Way has thousands of black holes
The heart of our Galaxy is swarming with black holes. According to American astronomers, the black hole cluster will be depleted as holes are occasionally gobbled up by the giant black hole dominating the middle of the Milky Way. (2000-04-04)

Black holes' fatal attraction triggers galaxies' change of heart
Supermassive black holes at the hearts of large galaxies merge when their host galaxies do, say Professor David Merritt of Rutgers University, New Jersey, and Professor Ron Ekers of CSIRO's Australia Telescope National Facility in Sydney, Australia. (2002-08-02)

NASA observatory confirms black hole limits
The very largest black holes reach a certain point and then grow no more. That's according to the best survey to-date of black holes made with NASA's Chandra X-ray Observatory. Scientists also discovered previously hidden black holes well below their weight limit. (2005-02-15)

Capturing black hole spin could further understanding of galaxy growth
Astronomers have found a new way of measuring the spin in supermassive black holes, which could lead to better understanding about how they drive the growth of galaxies. (2013-07-29)

New research reveals hundreds of undiscovered black holes
Computer simulations of a spherical collection of stars known as 'NGC 6101' reveal that it contains hundreds of black holes, until now thought impossible. Recent observations already found black hole candidates in similar systems, with this research enabling Astrophysicists to map black holes in other clusters. These systems could be the cradle of gravitational wave emission, 'ripples' in the fabric of space-time. (2016-09-07)

When radio galaxies collide, supermassive black holes form tightly bound pairs
Supermassive black holes found in the centers of galaxies can form gravitationally bound pairs when galaxies merge, according to a study published in the Sept. 18 issue of Nature Astronomy. (2017-09-18)

Gas promises bumper black hole 'weigh-in'
A new way of measuring the mass of supermassive black holes could revolutionize our understanding of how they form and help to shape galaxies. (2013-01-31)

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