Scientists have claimed to make a breakthrough that would be “one of the holy grails of modern physics” – but experts have urged caution about the results. In recent days, many commentators have become excited by two papers that claim to document the production of a new superconductor that works at room temperature and ambient pressure. Scientists in Korea said they had synthesised a new material called LK-99 that would represent one of the biggest physics breakthroughs of recent decades. Superconductors are a special kind of material where electrical resistance vanishes, and which throw out magnetic fields. They are widely useful, including in the production of powerful magnets and in reducing the amount of energy lost as it moves through circuits. They are also often impractical, since they require low temperatures and high pressure. That means that they cannot be used in most traditional circuits, for instance. Since the beginning of the last century, scientists have been working not only to understand superconductivity but also develop new materials that would allow the phenomenon to be harvested at ambient temperatures and pressures. That has not been successful, and the discovery of such a material would mark a major breakthrough in physics. The new papers, published in recent days as a preprint on the website arXiv, claims to have overcome that problem. The researchers said they had not only found a way to synthesise such a superconducting material, but also that it could be done relatively easily – leading to huge excitement on social media. One Twitter thread from Alex Kaplan, a recent Princeton graduate who is now head of coffee product at startup Cometeer, helped propel the news into the mainstream. His thread had been viewed 8.5 million times, Twitter said, and has been retweeted more than 10,000 times. “Today might have seen the biggest physics discovery of my lifetime. I don’t think people fully grasp the implications of an ambient temperature / pressure superconductor,” he wrote in a long thread that went on to explain the possible applications of the material. Mr Kaplan pointed to the fact that vast amounts of energy are lost in the transmission of electricity across the world, that the the authors claimed material could be made in just 34 hours with simple equipment, and that such a superconductor would have revolutionary uses in everything from nuclear fusion reactors to batteries and quantum computers. Scientists away from the work agreed that such a breakthrough would be hugely significant. But they urged caution, pointing to the fact that the paper has not yet gone through the peer review process, the results have not been replicated, and that there could be other explanations for the apparently astonishing behaviour described in the work. “A real, working room-temperature superconductor which works at ambient pressure would be one of the holy grails of modern physics, unlocking major new developments in energy, transportation, healthcare, and communications,” said Mohammad Yazdani-Asrami of the University of Glasgow’s James Watt School of Engineering. “As it stands, however, the paper is not yet peer-reviewed and has not yet been tested in other labs to see if other researchers can reproduce its results. These are both key to determining for sure whether the world should be getting excited about the authors’ claims, which need much more scrutiny at this early stage. If the claims of findings are approved, perhaps, this is one of the most significant achievements of last few decades in physics and material engineering.” Others voiced specific concerns about the paper. Some of the results meant that other researchers working on superconductors were not convinced by the claims made in the paper. “The recent preprint by Lee, Kim and Kwon suggesting that they have observed room temperature superconductivity in the copper doped lead phosphate system, without the need for very high applied pressures, is interesting, but not yet wholly convincing,” said Susannah Speller, Professor of Materials Science at the University of Oxford, and Chris Grovenor, Professor of Materials at the University of Oxford. Professors Speller and Grovenor pointed to the fact that the data did not show the behaviour that would be expected to happen when the material became superconducting. Features that would be expected to be evident in the results were not, they said, and “and so it is too early to say that we have been presented with compelling evidence for superconductivity in these samples”. John Durrell, professor of superconductor engineering at Cambridge University, said that it could take considerable time to see the practical benefits of the breakthrough, even if the team’s results were confirmed. “There will be understandable scepticism about this result in the community as there have been numerous reports of room temperature superconductors over the years which have not held up,” he told The Independent. “I would, therefore, personally withhold judgement on this work until it becomes clear if the result is reproducible in other laboratories. “From my engineering point of view, a practical room temperature superconductor would be potentially transformative – allowing a host of exciting applications such as cheap MRI machines, more compact and efficient motors and low loss power transmission. “However, there can be significant challenges in turning a newly discovered superconducting material into a practical material. 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A huge mass of heat-emitting rock has been found buried beneath the surface of the Moon. The incredible discovery was made beneath one of the Moon’s craters, where a large mass of granite has slowly been releasing heat for years. Experts know that the Moon used to have eruptions and lava fields flowing from it, but until now, they have never uncovered evidence that is reminiscent of Earth-like volcanoes, underneath which granite forms when magma cools and crystalises deep beneath the surface. Now, that has changed after astronomers looked a bit more deeply at what lies beneath the Compton and Belkovich craters, located on the far side of the Moon. There they came across a large piece of granite rock that is emitting heat. The discovery excited experts as granite is not commonly found outside of Earth. Granite on the Moon was discovered using data from both Chinese and American lunar orbiters, and the information has revealed a whole new volcanic process never before witnessed. In a statement, one of the lead researchers, Dr Matt Siegler, from the Planetary Science Institute, said: “Using an instrument looking at microwave wavelengths – longer than infrared – sent to the Moon on both the Chinese Chang’E 1 and 2 orbiters, we have been able to map temperatures below the surface. “What we found was that one of these suspected volcanoes, known as Compton-Belkovich, was absolutely glowing at microwave wavelengths.” He continued: “What this means is that it is hot, not necessarily at the surface, as you would see in infrared, but under the surface. “The only way to explain this is from extra heat coming from somewhere below the feature within the deeper lunar crust. So Compton-Belkovich, thought to be a volcano, is also hiding a large heat source below it.” Using the data, they believe the 12-mile wide dip makes up the caldera, or depression, of the ancient volcano, where the surface temperature is 10°C higher than the surrounding areas. The volcano is thought to have last erupted 3.5 billion years ago and experts believe the heat that is emitting from the granite below is due to trapped radioactive material in the rock. Sign up to 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.

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The logo of “X” (formerly known as Twitter) has changed again and everyone is saying the same thing. Since Elon Musk took over the social media platform Twitter, he has implemented some major changes, one of the biggest being a complete rebrand to “X” which left industry experts baffled. As part of the rebrand, the iconic logo of 17 years was changed from the famous sky blue and white bird logo to a black and white X that some have compared to resembling a porn site. Now, Musk has made another update to the default app icon logo, adding some white marks to the black background behind the X to give it a kind of worn grunge effect. But, the subtle change has been mercilessly mocked by X users and simply left everyone increasingly yearning to have the old bird logo back. Sign up to our free Indy100 weekly newsletter “Impressive how they managed to make it look ever tackier,” one person argued. Another said: “Not the f**king grunge_overlay_04.png texture.” Someone else wrote: “Well it’s def not beating porn site allegations any time soon.” Among the criticism, others called for the app logo to be changed back to its original state. “They should update to this,” one person wrote. According to the number of likes the tweet has garnered, it would appear thousands of others agree. 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.

It might sound more like the kind of idle daydream billionaires like Elon Musk would have, but could flooding the Sahara actually be the best way of tackling climate change in the future? The idea of creating a new “sea” in Africa is being discussed, and it’s not the first time that the notion of a great oasis in the Sahara has been discussed among the scientific community. As the ongoing climate crisis continues to worsen, the notion of flooding vast areas of the desert is being returned to once again [via IFL Science]. A new “sea” was first proposed following the study of the Messinian salinity crisis – which saw a dried-out area of the Mediterranean rejuvenated by the Zanclean flood, reconnecting the Mediterranean Sea to the Atlantic Ocean around 5.33 million years ago. Sign up to our free Indy100 weekly newsletter Given how the Mediterranean was transformed by the flood, the idea of flooding the Sahara to achieve similar results has been thrown around in the scientific community as far back as 1877, the Scottish engineer Donald McKenzie suggested flooding the El Djouf basin in Western Africa. The idea is now returning to popularity as the world looks for solutions to the climate crisis. One proposal centres on the Middle East’s Dead Sea and flooding the area using water from the Red Sea to the Dead Sea Depression. A vast sea in Africa could represent a hugely innovative step towards tackling climate change and fostering a new hub of life – but even the people suggesting work such a project acknowledge just how expensive and dangerous it is. Even Y Combinator is a US startup accelerator who has described “desert flooding” as “risky, unproven, even unlikely to work”. Only time will tell whether the notion of a new sea in the Sahara coud ever work, or whether it’ll remain the stuff of dreams. 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.