Scientists confused after black holes 'burp up' previously destroyed stars
It feels like every time black holes are discussed and studied by the scientific community, there are new findings that blow our tiny minds. It’s been revealed that black holes actually regurgitate or “burp up” the stars that they eat years after the event. Experts made the discovery by studying tidal disruption events (TDEs). These events take place when stars are close enough to supermassive black holes, to be destroyed by the process of spaghettification. Studying these moments over a number of years after the black holes seemingly swallowing stars with no trace, the experts found that up to 50 per cent of them "burp up" the remains. Yvette Cendes is a research associate at the Havard and Smithsonian Center for Astrophysics and head author on the study. Speaking to Live Science, she said: "If you look years later, a very, very large fraction of these black holes that don’t have radio emission at these early times will actually suddenly 'turn on' in radio waves. "I call it a 'burp' because we’re having some sort of delay where this material is not coming out of the accretion disk until much later than people were anticipating." The material was re-emitted between two and six years from 10 out of 24 black holes which were studied by Cendes and the team. It has the potential to change the way the scientific community thinks about black holes. "There was a second peak, the two black holes re-brightened, and that's completely new and unexpected," Cendes said. "People were thinking that you'd have one outflow, and then it's kind of done. So this observation means these black holes can 'turn on' and then 'turn on' again." Meanwhile, a low intergalactic grumbling is emanating from deep space, according to scientists – and again, it’s black holes that are providing us with new discoveries. Astronomers say they detected the first-of-their-kind low frequency ripples, described as a “cosmic bass note” of gravitational waves, which is thought to be caused by supermassive black holes merging across the universe. Sign up for our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings
2023-09-07 00:29
Early alarm bells for DeSantis as Pence falls behind: Takeaways from new campaign finance reports
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In Fargo, North Dakota, Gov. Doug Burgum jumps into crowded Republican race for president
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Ballon d’Or Awards LIVE: Latest updates as Lionel Messi favourite and Jude Bellingham wins Kopa Trophy
The Ballon d’Or awards ceremony takes place at the Theatre du Chatelet in Paris this evening when football’s most prestigious prize is presented to the best footballer from the 2022/23 season. Lionel Messi, the favourite to win the Ballon d’Or, is the most decorated winner of all time with seven triumphs to his name. His heroics in helping Argentina win the World Cup mean Messi looks likely to extend his record with an eighth win but he faces competition from Manchester City’s Erling Haaland who had a record-breaking season of his own and PSG’s Kylian Mbappe after he won Ligue 1 and played a huge part in taking France to the World Cup final. The women’s award, the Ballon d’Or Féminin, will also be handed out this evening. Spain’s Aitana Bonmati is the favourite to succeed Alexia Putellas as the award winner after leading Spain to their Women’s World Cup triumph and Barcelona to the Women’s Champions League but there may be some surprises in store at the ceremony. Follow along for the latest updates from the Ballon d’Or awards in Paris with our liveblog below:
2023-10-31 04:25
Millions travel across China as national holiday kicks off
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Fox News anchor Sean Hannity slammed for claiming Joe Biden is 'losing it' after bizarre moment with Alejandro Mayorkas
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Twitter is producing errors. What we know.
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