Going on a spacewalk might sound like a lot of fun – but in reality it’s no walk in the park. From their muscles getting less dense all the way to erectile dysfunction, astronauts have to put up with all sorts of things going wrong with their body. And none more gross than what happens to their fingernails. Turns out they just fall right off. The technical term for this is onycholysis, and it has to do with how much – or how little – atmospheric pressure there is in space. Because there is so little ambient pressure in space, astronaut’s space suits need to be pressurised to keep the human body intact. But that’s not good for the hands, it turns out. “Injuries to the hands are common among astronauts who train for extravehicular activity (EVA),” says a 2015 conference paper by space specialists Wyle Laboratories. “When the gloves are pressurized, they restrict movement and create pressure points during tasks, sometimes resulting in pain, muscle fatigue, abrasions, and occasionally more severe injuries such as onycholysis. “Glove injuries, both anecdotal and recorded, have been reported during EVA training and flight persistently through NASA's history regardless of mission or glove model." A 2010 study looked at 232 hand injuries sustained by astronauts, and found that the wider your knuckle joints, the more likely you are to suffer in a space suit. The study suggested that because space suit gloves limit the mobility of these knuckles, the fingers then get put under more pressure. This, in turn, means less blood gets to the fingers, and risks onycholysis. Ouch. Work has been done to try to improve the design of space suit gloves, of course. One team found that the more tailored they were to each astronaut’s finger length the less likely they were to lose their fingernails. That’s no mean feat, however. These gloves are made of at least four layers: one which touches the skin, one which helps create the pressurised environment, another one which makes the pressure layer less stiff, and an outer layer which protects the astronaut from everything on the outside. Mercifully for NASA astronauts at least, they usually have their gloves fitted to each wearer, and with new space suit design moving forward each day, the number of injuries is decreasing. Nonetheless, it sounds like a trip to space is no time for a manicure. How to join the indy100's free WhatsApp channel 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.

Tornado Cash, a service that allows users to mask cryptocurrency transactions, suffered a hostile takeover by hackers through

EA FC 24 Ultimate Team Position Modifiers have been removed for the new game cycle. Players will now automatically switch to eligible positions when moved in Squad Building.

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TL;DR: As of June 21, you can pick up a refurbished MacBook Pro (Core i5,

Apple has announced a surprise event, at which it is expected to unveil new Macs. The event is unusual in a number of ways, including its much later start than Apple’s regular events: it will begin at 5pm local pacific time, or midnight in the UK. Apple events almost always begin at 10am local time, and it did not give any indication of why it had changed its time. It will also take place notably late in the year, on 30 October. Apple appeared to reference the proximity to Hallowe’en in its invitation, which used the title “Scary fast”. It will also be entirely virtual, with no in-person attendance. Apple switched to fully virtual events during the pandemic, but has since opened up physical attendance as restrictions have lifted. Unlike many recent Apple events, it is unclear what exactly the company is planning – though Apple’s website used the “Finder” icon from the Mac operating system, all but confirming a focus on its computers. Apple seems likely to introduce a new version of its iMac, which was last updated in April 2021 and is now far behind all of the rest of Apple’s line-up. It still uses Apple’s M1 chip, and the event will presumably at least bring it up to speed with the existing M2 processors. The company might unveil its first M3 processors, however. Apple’s first M2 computers arrived last summer, inside updated MacBook Air and MacBook Pro models, and so those computers could also be updated with the latest generation. Some reports have also suggested that Apple could be planning an update for its most high-end and expensive 14- and 16-inch MacBook Pro, too. Those were overhauled earlier this year, however, with the introduction of the M2 Pro and M2 Max, meaning that any new update might be less likely or could be more minor. Recent weeks brought rumours that Apple was planning to update at least some of its iPads. The rumoured launch day only brought a new Apple Pencil, however – which may mean that the iPads were delayed for the upcoming event, or may mean that Apple opted not to make any changes to the iPad and released the Apple Pencil to clear the way for its new Macs. The latest launch comes the month after Apple held another live event – at its usual time – to launch the new iPhone 15 and other products. Read More Apple ‘is planning surprise Mac announcement soon’ Apple just released a new Pencil after days of excitement Sadiq Khan, Met Commissioner to ask phone companies to ‘design out’ theft

Phosphates have been found on Saturn’s moon Enceladus, in a new breakthrough discovery that boosts hopes for finding alien life in our solar system. It is the first time phosphorus has been found in an ocean beyond those on Earth, and marks a major development in our understanding of other ocean worlds. Enceladus is one of the most likely hopes for finding nearby extraterrestrial life. While its outside is wrapped in an ice crust, underneath is a global ocean that could be a home for alien life. Some of that ocean spews up and out of the surface of Enceladus, in the form of vast plumes. Scientists have been able to examine those plumes to better understand the ocean itself, including in the new study. Researchers in the latest study used data from the Cassini mission – which flew around Saturn and Enceladus – to find out what the oceans are made up of. They not only found phosphorus, but data suggested that it could be there are concentrations at least 100 times higher than in Earth’s oceans. What’s more, modelling based on the new data suggests the same could be true for other ocean worlds, potentially boosting the chances of alien life there, too. Phosphorus is not in itself evidence of life. But on Earth, the presence of phosphorus compounds in water are crucial for biological activity, and so it is a key part of evaluating whether a distant world might support life. Read More Astronomers find rare planet circling two stars like Star Wars’s Tatooine Elon Musk to launch biggest ever rocket after dramatic failure US government contradicts whistleblower’s claims of possible ‘non-human’ material

TOKYO SoftBank Group has resumed investment in new AI companies, investing $65 million in British firm Tractable, an