Astronomers have spotted the moment a black hole "turned on". While looking for the collision of a neutron star with another object, which should result in a kilonova (an explosion which reddens then fades over time), they stumbled upon an event which remained extremely bright. They soon worked out this light was because of supermassive black hole called J221951-484240 which had been on for around 10 months. But then they had to work out what had caused it, and got stuck between two causes, “J221951 is consistent with being nuclear, so the scenarios we are being left are a tidal disruption event or an active galactic nucleus,” lead author Dr Samantha Oates said as she presented the research at the National Astronomy Meeting 2023. “Looking at the spectrum it's consistent with both categories.” Sign up to our free Indy100 weekly newsletter A tidal disruption event (TDE) takes place when a star or a gas cloud gets too close to a supermassive black hole. The material is ripped apart, and begins to shine as the black hole feeds Alternatively, it could be an active galactic nucleus (AGN), the phase of a supermassive black hole where it is consistently feeding in a frenzy. “We hope in future to distinguish between these two scenarios,” Dr Oates concluded. 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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The Loch Ness Monster has left people scratching their heads for years, with many claiming they spotted the beast itself. Now, it's got its own "eel hypothesis," a paper dedicated to the theory that such sightings could have been eels. Researchers looked at data from Loch Ness to understand the number of eels there and their average measurements, as per IFL Science. They discovered that the eels were on the smaller side, compared to the estimates of the Loch Ness Monster, said to be roughly 1-2 metres according to one sighting. Another suggested it could be 15-20 metres. "However, this is not quite the ‘monster postulated," the authors told the outlet."Indeed, the probability of finding a 6-meter [20-foot] eel in Loch Ness is essentially zero – too low for the software used to provide a reliable estimate." "Thus, while large eels may account for some eyewitness sightings of large, animate objects rising to the loch surface, they are unlikely to account for 'sightings' of extraordinarily large animals, which may instead be accounted for by wave phenomena, the occasional stray mammal, or other reasons." Sign up for our free Indy100 weekly newsletter It comes after several sightings last year were shot down by an academic who said they were simply whale penises. Michael Sweet, a professor in molecular ecology at the University of Derby, candidly, and informatively, added: "Whales often mate in groups so while one male is busy with the female the other male just pops his d*** out of the water while swimming around waiting his turn. "Everyone’s gotta have a bit of fun, right?" 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.

Binance appears to have lost market share amid changes to its trading-fee structure and a wider regulatory crackdown

Microsoft has hired OpenAI co-founder and former chief executive Sam Altman just days after he was ousted from his company. Mr Altman was fired on Friday, less than a year after launching the hugely successful AI chatbot ChatGPT, with OpenAI’s board saying it “no longer has confidence in his ability to continue leading OpenAI”. Microsoft CEO Satya Nadella was reportedly “furious” about being blindsided by Mr Altman’s firing, despite the tech giant being a key investor of the artificial intelligence firm. On Monday, Mr Nadella announced that both Mr Altman and fellow OpenAI co-founder Greg Brockman would be joining his company. “We’re extremely excited to share the news that Sam Altman and Greg Brockman, together with colleagues, will be joining Microsoft to lead a new advanced AI research team,” Mr Nadella wrote on X, formerly Twitter. “We look forward to moving quickly to provide them with the resources needed for their success.” Mr Altman replied to the post: “The mission continues.” Mr Altman had previously posted a picture of himself wearing an OpenAI guest pass over the weekend, together with the caption: “First and last time I ever wear one of these.” Mr Nadella followed up his original post on X with further details about what Mr Altman’s new role might be within the company. “I’m super excited to have you join as CEO of this new group, Sam, setting a new pace for innovation,” he wrote. “We’ve learned a lot over the years about how to give founders and innovators space to build independent identities and cultures within Microsoft, including GitHub, Mojang Studios, and LinkedIn, and I’m looking forward to having you do the same.” Read More OpenAI in talks to bring Sam Altman back days after CEO ouster, reports say OpenAI co-founder Sam Altman ousted as CEO ChatGPT Plus stops signups after major update ChatGPT creator mocks Elon Musk in brutal tweet ChatGPT goes offline ChatGPT update allows anyone to make their own personalised AI assistant

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UPDATE: May. 13, 2023, 5:00 a.m. EDT This post has been updated with the latest