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They may not be as stylish as a DeLorean or as sturdy as a blue police box, but wormholes in space could hold the key to real-life time travel – and a team of experts think they’ve figured out how. The trio of scientists delved deep into the laws of physics and discovered that it might be possible for humans to one day zip across galaxies in a matter of seconds, or journey through time itself. Now, this is all to do with the general theory of relativity and quantum physics, so don’t expect to get your head around it too easily. However, in their paper, Valeri P. Frolov and Andrei Zelnikov of Canada’s University of Alberta, and Pavel Krtouš of Prague’s Charles University proposed that a specific kind of wormhole would “inevitably” be “transformed into a time machine” if it was subject to particular conditions. Sign up for our free Indy100 weekly newsletter For the uninitiated, wormholes can be described as spacetimes in which a “kind of tunnel exists connecting distant parts in the universe”. The main problem with them is… they don’t actually exist. At least not in any tangible way. As Drs Eric Christian and Louis Barbier put it in an explainer for NASA: “Wormholes are allowed to exist in the math of ‘General Relativity’, which is our best description of the Universe. “Assuming that general relativity is correct, there may be wormholes. But no one has any idea how they would be created, and there is no evidence for anything like a wormhole in the observed Universe.” Still, numerous experts in the field of gravitation and general relativity have spent years or even decades working on them, including Stephen Hawking in his time. For their paper, Frolov, Krtouš, and Zelnikov explored what is known as a ring wormhole, which was first described in 2016 by theoretical physicist Gary Gibbons, of Cambridge University, and Mikhail Volkov of the University of Tours. Unlike the spherical contortions of spacetime we might attribute to black holes, the ring wormhole proposed by Gibbons and Volkov connects sections of the universe (or, indeed, different universes) which are generally described as “flat”, as ScienceAlert notes. Ring-shaped masses could potentially create some pretty remarkable distortions in what would otherwise be flat spacetime if you consider how their electrical and magnetic fields might interact. And so Frolov, Krtouš, and Zelnikov decided to consider two types of such wormholes: “a wormhole connecting to flat spaces; and a wormhole connecting two distant domains in the same space”. For the latter, they concluded that if a “massive thin shell” surrounded one of the mouths of the ring wormhole, a “closed timelike curve” would form. This, as the name suggests, would mean that any travelling object (or ray of light) would come back to the exact same point whence it began. In other words, you could travel in space and time and return to your point of departure. The most exciting aspect of ring wormholes, as the authors point out is that: “For the ring wormhole an observer passing through it moves in a flat (or practically flat spacetime), while in the case of ‘standard’ (spherical) wormholes he/she should pass a domain filled with the matter violating the null energy condition.” Even without knowing what the “null energy condition” is, you can appreciate that the first option sounds a lot simpler. Now, before you start calling yourself Marty McFly or making a list of all the past mistakes you’d like to correct, we should stress that we’re a long way off seeing the creation of a bonafide, buckle-your-seatbelt time machine. But at least, thanks to the efforts of experts like Frolov, Krtouš, and Zelnikov, we’re at least one step closer to going back in the future. 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.

UPDATE: Jun. 21, 2022, 3:25 p.m. EDT This story has been updated to reflect the

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There is no evidence to suggest using Facebook is detrimental to wellbeing, Oxford scientists have said, challenging the view that the social media platform is linked to psychological harm. Researchers from the University of Oxford’s Oxford Internet Institute analysed data from nearly a million people across 72 countries over 12 years – in the largest study of its kind – to understand more about the impact of Facebook on wellbeing. Professor Andrew Przybylski, who co-led the research published in the journal Royal Society Open Science, said: “We examined the best available data carefully – and found they did not support the idea that Facebook membership is related to harm – quite the opposite. “In fact, our analysis indicates Facebook is possibly related to positive well-being.” The research looked at Facebook data from 2008 to 2019, going back to when the platform was in its early stages. “We examined 72 countries’ per capita active Facebook users in males and females in two age brackets, 13-34 years and 35+ years,” the researchers said. The results also showed the association between using Facebook and wellbeing was slightly more positive for males as well as for younger people. It was generally the case that there were positive associations between country-level Facebook uptake and mental wellbeing Prof Peter Etchells Writing in the research paper, the authors said: “Although reports of negative psychological outcomes associated with social media are common in academic and popular writing, evidence for harms is, on balance, more speculative than conclusive.” Professor Matti Vuorre, also of the Oxford Internet Institute, who co-led the study, said: “Our findings should help guide the debate surrounding social media towards more empirical research foundations. “We need more transparent collaborative research between independent scientists and the technology industry to better determine how, when and why modern online platforms might be affecting their users.” Commenting on the study, Peter Etchells, professor of psychology and science communication at Bath Spa University, said: “This is a fascinating study that attempts to link Facebook uptake with measures of mental wellbeing in a broad-strokes manner, using data from over 70 countries. “Contrary to popular sentiment, the researchers didn’t find a negative association between the two; instead, it was generally the case that there were positive associations between country-level Facebook uptake and mental wellbeing. “To my mind, the value in this study lies in proof of principle – it demonstrates that it’s possible to leverage industry data to address meaningful questions about how digital technology interacts with our mental health.” But Prof Etchells said there were some caveats associated with the findings – which the study authors have addressed. He said: “This is a descriptive study, and as such cannot tell us anything about causation – that is, we don’t know how, if, or to what extent, changes in Facebook adoption drive changes in mental wellbeing. “Wellbeing is a complex phenomenon, and even in the context of social media use, we need to be careful drawing any firm conclusions by looking at how people use a single platform such as Facebook.” Read More Charity boss speaks out over ‘traumatic’ encounter with royal aide Ukraine war’s heaviest fight rages in east - follow live Ozzy Osbourne PlayStation tweet which failed to reveal link to Sony banned Harry and Meghan ring young online innovators after funding awards James Bulger’s mother condemns ‘disgusting’ AI clips on TikTok of murdered son

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