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Scientists have “heard” a chorus of gravitational waves rippling through the universe, in what they say is an unprecedented finding that could fundamentally change our understanding of the universe. The discovery, described in a range of newly published journal papers, suggests that spacetime is being rocked by intensely powerful gravitational waves all the time. Those waves carry a million times more energy than the one-off bursts of gravitational waves that were detected from a black hole and were themselves hailed as a major breakthrough in our understanding of the universe. The new results suggest that everything is being slowly shrunk and expanded by a new kind of gravitational wave as they pass through our galaxy. Scientists describe it as being akin to hearing a “symphony” of waves echoing through the universe. “It’s like a choir, with all these supermassive black hole pairs chiming in at different frequencies,” said Chiara Mingarelli, a scientist who worked on the new findings while an associate research scientist at the Flatiron Institute’s Center for Computational Astrophysics. “This is the first-ever evidence for the gravitational wave background. We’ve opened a new window of observation on the universe.” The new findings have been described in a range of journal articles, published in different academic journals. The research is the result of 25 years of observations from six of the world’s most sensitive radio telescopes, and have been simultaneously published by different collaborations across the world. The findings are not only notable in themselves. They also offer the opportunity to find out some of the universe’s secrets, since they can be used to find information about the binary black holes that form when galaxies merge, for instance. “These results signify the beginning of an exciting journey into the Universe, where we aim to unravel its mysteries,” Michael Keith, a lecturer at Jodrell Bank Centre for Astrophysics, UK, and contributor to one of the new studies, published in Astronomy and Astrophysics. “After decades of tireless work by hundreds of astronomers and physicists worldwide, we are finally detecting the long-awaited signature of gravitational waves originating from the distant Universe.” Scientists made the discovery by analysing observations of pulsars, which are extinguished stars that can be used as reliable clocks in the distant universe. By bringing together such a large amount of detailed data, researchers were able to measure those pulsars with very high accuracy, allowing them to measure gravitational waves at a far larger scale than using detectors on Earth. “Pulsars are excellent natural clocks. We exploit the remarkable regularity of their signals to detect subtle changes in their rhythm, enabling us to perceive the minute stretching and squeezing of space-time caused by gravitational waves originating from the far reaches of the Universe,” said David Champion, a senior scientist at the MPIfR in Bonn, Germany, and contributor to the study, in a statement. For now, researchers are only able to “hear” the vast choir, rather than the individual pulsars that make up its singers. But together they are much louder than expected, meaning that there may be more or more heavy supermassive black holes to be found in the universe. Read More Astronomers find zombie planet that ‘shouldn’t exist’ Nasa to begin Moon mining within next decade Nasa rover spots bizarre donut shaped rock on Mars

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Jimmy Donaldson, better known as MrBeast online, is an American YouTube personality, entrepreneur, and philanthropist, who has recently become only the second creator to reach 100 million subscribers. The 24-year-old pioneered a content genre focusing on expensive stunts, challenges and donations. The more popular he gets, the more money he gives away. The YouTube star documented his live reaction to hitting the milestone on a YouTube stream, where he thanked everyone for their support. "I appreciate every single one of you that watches the videos. This is literally all I've ever done with my life," he said, adding, "All I do is wake up every day and obsess over how to make the best videos possible. It's all I care about. It's the only thing that's ever really made me happy." He also tweeted a celebratory message on Twitter to express his gratitude, saying, "I'm grateful I get to do this all day everyday," adding in a separate post: "No matter how big I get I'll never own a mansion, yacht, Lamborghini etc. All I want is to make the best videos possible and help as many people as I can while doing it." The viral sensation has also shared a clip which saw him pay for cataract removal for 1,000 people who could not afford surgery to cure their blindness. His YouTube video saw MrBeast work with ophthalmologist and surgeon Jeff Levenson, who runs the Gift of Sight program in Florida, helping people by providing free cataract surgery to people who need it most. Taking to Twitter, he wrote: "I don’t understand why curable blindness is a thing. Why don’t governments step in and help? "Even if you’re thinking purely from a financial standpoint it’s hard to see how they don’t roi on taxes from people being able to work again." But where did it all begin? Sign up to our free Indy100 weekly newsletter 100 Million Subscriber Livestream! www.youtube.com Who is MrBeast? Donaldson (aka MrBeast) was born in Wichita, Kansas, on May 7, 1998. The YouTuber first joined the platform in February 2012, aged 13. His earlier videos focused on video game footage and estimated net worths of fellow YouTube stars. He later found viral fame when a video of him counting to 100,000 made waves across YouTube after taking 40 hours to complete. MrBeast soon joined a competition from PewDiePie to become the most-subscribed channel on YouTube. Flash forward to 2022, MrBeast is now one of the most-viewed and highest-paid creators on YouTube. He has since hired many of his childhood friends to help him grow his brand with a team of approximately 60 people. He also runs several other YouTube channels, including Beast Reacts, MrBeast Gaming, MrBeast Shorts, and a philanthropy channel. How many subscribers does MrBeast have? The YouTuber is the second creator to hit 100 million subscribers on the platform after joining YouTube in February 2012. MrBeast hit the milestone on July 28 and is now only 11 million followers behind PewDiePie, real name is Felix Kjellberg, who takes the top spot. He has donated over 100 cars, hosted a private island giveaway, and handed out over 100 PS4s. He even gave away $1 million (£819,600) in a single video. What is his top-viewed YouTube video? MrBeast's most watched video of all time is his '$456,000 Squid Game In Real Life!' which garnered an impressive 277.1 million views. One lucky winner took home $456,000 (£341,000) after winning all the challenges in a recreation of the Netflix mega-hit TV series Squid Game. $456,000 Squid Game In Real Life! www.youtube.com Number 079 – Tryzon - beat out 455 competitors in challenges viewers will recognise from the show, such as Red Light, Green Light, the dalgona challenge, tug of war, marbles and the glass stepping stones to bag the jackpot. (They skipped out on the part from the show where the contestants are killed... for obvious reasons). 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.

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