Keyword: blackhole
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The James Webb Space Telescope peered 13.4 billion years into the past and found a black hole-sized conundrum. The oldest supermassive black hole astronomers have ever seen is gorging messily on the heart of its host galaxy, which may ultimately doom the black hole along with its prey. In the process, this ancient black hole — or at least as it looked 13.4 billion years ago — may offer important clues about how the universe’s first supermassive black holes formed and grew. University of Cambridge astrophysicist Roberto Maiolino and his colleagues recently used the James Webb Space Telescope (JWST) instruments...
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By looking at radio waves and X-ray emissions, a team of physicists has found black hole Sagittarius A* to be spinning — and altering space-time around it. The supermassive black hole at the center of our galaxy, Sagittarius A*, is spinning rapidly and altering space-time around it, a new study has found. Space-time is the four-dimensional continuum that describes how we see space, fusing one-dimensional time and three-dimensional space together to represent the space fabric that curves in response to massive celestial bodies. A team of physicists observed the black hole, which is located 26,000 light-years from Earth, with NASA’s...
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Illustration of how a failed supernova can become a black hole. (P. Jeffries/STScI/NASA/ESA) In 2009 a giant star 25 times more massive than the Sun simply…vanished. Okay, it wasn't quite that simple. It underwent a period of brightening, increasing in luminosity to a million Suns, just as if it was ready to explode into a supernova. But then it faded rather than exploding. And when astronomers tried to see the star, using the Large Binocular Telescope (LBT), Hubble, and the Spitzer space telescope, they couldn't see anything. The star, known as N6946-BH1, is now considered a failed supernova. The BH1...
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Artist’s impression of GRB 211211A. Scientists have linked this unusual gamma-ray burst from a nearby galaxy to a neutron star merger. Credit: Soheb Mandhai @TheAstroPhoenix An unusually powerful gamma-ray burst (GRB 211211A), detected from a nearby galaxy, has been linked to a neutron star merger by an international team of scientists. This burst, notable for its excess of infrared light, was shown to originate from a kilonova, an event thought to occur when neutron stars collide. Scientists have linked a highly unusual blast of high-energy light from a nearby galaxy to a neutron star merger. The event, detected in December...
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Artist impression of a black hole accretion. Astronomers led by the University of Southampton have discovered the largest cosmic explosion ever observed, known as AT2021lwx. Over ten times brighter than any known supernova and three times brighter than the brightest tidal disruption event, the explosion has been ongoing for more than three years. Researchers believe the explosion is due to a massive gas cloud, possibly thousands of times larger than the sun, being violently disrupted by a supermassive black hole. Credit John A. Paice www.johnapaice.com Astronomers have discovered the largest cosmic explosion ever observed, AT2021lwx, which is believed to have...
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Researchers at NOIRLab have released a version of the first image ever captured of a black hole that has been sharpened by using artificial intelligence. Photo courtesy of NOIRLab/Press Release April 13 (UPI) -- Researchers at the National Science Foundation's NOIRLab have applied AI technology to the first image ever captured of a black hole to present a clearer image of how gas spirals into supermassive black holes. When gas approaches a black hole, it swirls quickly and superheats because of friction, which in turn releases radiation that can be detected by radio telescopes. The team published a paper in...
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The Department of Justice has opened a criminal investigation into the leak of documents that "appear to contain sensitive and highly classified material," a Defense Department spokesperson said Sunday. The Pentagon was also still assessing the validity of the documents, the spokesperson said. "An interagency effort has been stood up, focused on assessing the impact these photographed documents could have on U.S. national security and on our Allies and partners," Pentagon deputy press secretary Sabrina Singh said in a statement. "Over the weekend, U.S. officials have engaged with Allies and partners and have informed relevant congressional committees of jurisdiction about...
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Gaia Black Holes The location of the first two black holes discovered by ESA’s Gaia mission in the Milky Way. This map of our galaxy was also made by the Gaia mission. Gaia Black Hole 1 is located just 1560 light-years away from us in the direction of the constellation Ophiuchus and Gaia Black Hole 2 is 3800 light-years away in the constellation Centaurus. In galactic terms, these black holes reside in our cosmic backyard. Credit: ESA/Gaia/DPAC; CC BY-SA 3.0 IGO ESA’s Gaia mission has helped discover a new kind of black hole. The new family already has two members,...
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CNN anchor Don Lemon said Friday on “CNN This Morning” that former President Donald Trump’s “racist” attacks on Manhattan District Attorney Alvin Bragg and New York Attorney General Letitia James were “really disturbing.” Partial transcript as follows: LEMON: This is really disturbing to me because he’s been doing this for a while, and I think we can’t talk enough about it, where he’s been calling these prosecutors who happen to be African-American, saying that they’re racist. He called Alvin Bragg a Soros-backed animal. He’s turning to his old tricks here of, you know, being racist or racist-adjacent, using that type...
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Don Lemon didn't hold back when discussing Donald Trump after his speech at the Conservative Political Action Conference (CPAC). The embattled anchor addressed the ex-president on Monday's CNN This Morning, calling #44 "low energy" as he scrambles to stay ahead as the Republican frontrunner for the 2024 presidential run, RadarOnline.com has learned. Lemon, 56, spoke up about his feelings on Trump after political commentator John Avlon claimed the former commander-in-chief comes off as "someone who is not well" but is likely to win over his party. Discussing Trump's CPAC speech over the weekend, in which he spouted wild inaccuracies about...
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Mirabilis, one of the pairs of dwarf galaxies detected. (NASA/CXC/University of Alabama/M. Micic et al./International Gemini Observatory/NOIRLab/NSF/AURA) For the first time, astronomers have spotted evidence of a pair of dwarf galaxies featuring giant black holes on a collision course with each other. In fact, they haven't just found just one pair – they've found two. The first pair of merging dwarf galaxies is in the cluster Abell 133, about 760 million light-years away from Earth, and the other is in the Abell 1758S galaxy cluster, which is about 3.2 billion light-years away. It's hoped that these sightings and further investigations...
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Astronomers have sighted a supermassive black hole traveling through space that appears to have been ejected from its host galaxy. Researchers observing the dwarf galaxy designated RCP 28, roughly 7.5 billion light years away from our solar system, noticed an aberrant streak of light via the Hubble telescope. The “streak” appears to be a collection of stars being dragged out of their home galaxy by the immense gravitational force of a black hole. The “runaway” black hole is the first of its kind to be observed, and appears to have been ejected from its original galaxy. “We found a thin...
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The discovery offers the first observational evidence that supermassive black holes can be ejected from their home galaxies to roam interstellar space...The researchers discovered the runaway black hole as a bright streak of light while they were using the Hubble Space Telescope to observe the dwarf galaxy RCP 28, located about 7.5 billion light-years from Earth.
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CNN anchor Don Lemon will be temporarily benched from the network on Monday following his controversial comments demeaning 2024 GOP presidential candidate Nikki Haley, according to a CNN insider. A CNN insider told Fox News Digital that Lemon has no plans to return to air earlier than Tuesday, adding that he is "taking the holiday" Monday and that his return to the show depends on "where his head is at." Lemon's boss, CNN CEO Chris Licht, scolded the host on Friday for the comment, calling it "upsetting, unacceptable and unfair" and a "huge distraction." Following intense backlash, Lemon tweeted out...
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The 56-year-old Lemon might not be terribly bright, but he’s also not dumb. He knows CNN This Morning is it. If this show doesn’t succeed, his next move is to HasbeenVille; is to Didn’t you used to be Don Lemon?; is to Twitter-ranting next to Keith Olbermann. And how is Lemon handling this pressure as he stares into the abyss of his career? Well, that’s the great part. He’s having a total meltdown right before our eyes, which is something I don’t want y’all to miss. Just a couple of weeks ago, we learned that Lemon was screaming at his...
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What a disaster. The CNN morning show is in shambles as reports of in-fighting and Don Lemon’s self-destructive behavior find their way to the front page of every news site. Lemon’s Thursday remark about presidential candidate Nikki Haley must have rubbed some execs the wrong way because “Don has the day off” today.More likely —Don no-showed.He did attempt a Twitter apology, but it didn’t exactly take. From Breitbart News:Don has the day off…Yeah, I bet he does…CNN This Morning is doomed. Lemon is imploding, and Kaitlin Collins and Poppy Harlow have all the charm of a first wife. The...
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Black holes are powerful cosmic reactors. They supply the energy for quasars and other active galactic nuclei (AGNs). This is due to the interplay between matter and its enormous gravitational and magnetic forces. A black hole technically lacks a magnetic field, but the dense plasma surrounding it as an accretion disc does possess a magnetic field. As plasma spirals around a black hole, the charged particles inside it create an electrical current and magnetic field. The direction of plasma flow does not spontaneously vary, hence the magnetic field is likely rather stable. Imagine the researchers’ amazement when they discovered evidence...
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This is the way life is supposed to work. This is the way to make Washington work.Listening, learning, sharing, disagreeing, and then doing. @CoryBooker @DonLemon pic.twitter.com/Uw3AjQHhmF— Frank Luntz (@FrankLuntz) February 9, 2023
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While America is prepared to pay for the last Ukrainian to die for America – the Western world is talking about something else: Harry Windsor has revealed the family secret. The family secret was that Harry is an idiot, whose strings are pulled by an American actress. Now the secret is out. Harry has himself told the whole world he is an idiot whose strings are pulled by an American actress. And Game-Changing Tanks? While Western Europe is prepared to pay for the last Ukrainian to die for Western Europe – Germany, France, Finland, the UK and some other countries...
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What Happens If A Star Explodes Near The Earth?Veritasium | November 15, 2022
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