A new technique is a dramatic breakthrough in the search for alien life, astronomers say. Researchers at the Breakthrough Listen project based at the University of California, Berkeley say they have developed a new way to be sure that any potential signal is really coming from space – and not from something more boring. Astronomers spend vast amounts of time looking for radio signals that might have come from alien civilisations as part of work on the search for extraterrestrial intelligence, or SETI. But they have in the past been fooled by very human technology, such as cellphones, microwaves and car engines, that can produce a blast of radio signals that look as if they have come from distant worlds. One way to check whether signals are really alien is to point the telescope elsewhere and then repeatedly return to the same spot, with the hope of seeing the signal again and ensuring that it is not a false alarm. But that is not foolproof – and only works if the signal sticks around. Some of the most promising radio signals might only be detectable once. The so-called “Wow!” signal, for instance – a radio signal detected in 1977 that was so shocking the astronomer who found it wrote the exclamation on a printout – has not been detected since, and astronomers still do not know whether it was an alien message or just a mistake. Now scientists have devised a new test that can be used to see whether a signal has really passed through interstellar space, which should help show that it is not from elsewhere on Earth. It works by looking for “scintillation” – the changes in amplitude of a signal as it is affected by the cold plasma of space. “The first ET detection may very well be a one-off, where we only see one signal. And if a signal doesn’t repeat, there’s not a lot that we can say about that. And obviously, the most likely explanation for it is radio frequency interference, as is the most likely explanation for the Wow! signal,” said Andrew Siemion, principal investigator for Breakthrough Listen and director of the Berkeley SETI Research Center, which operates the world’s longest running SETI program. “Having this new technique and the instrumentation capable of recording data at sufficient fidelity such that you could see the effect of the interstellar medium, or ISM, is incredibly powerful.” Dr Siemion called the breakthrough “one of the biggest advances in radio SETI in a long time” and said that it would be the first time researchers would be able to differentiate a real signal from a false alarm, even if it was only detected once. The technique can only be used for signals that have travelled 10,000 light years or more to Earth, researchers note. If it was closer to us, the scintillation effect cannot be seen because they are not travelling through enough of the interstellar medium, or ISM. The research is described in a new paper, ‘On Detecting Interstellar Scintillation in Narrowband Radio SETI’, published in The Astrophysical Journal. Read More Battery breakthroughs are about to trigger a transport revolution Huge asteroid nearly crashes into Earth – and is only spotted days later ChatGPT rival with ‘no ethical boundaries’ sold on dark web

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A major bank has issued a warning about crypto investment scams, with victims standing to lose more than £10,000 on average and young adults often being particularly at risk. Lloyds Bank has recorded a 23% rise in reports of cryptocurrency investment scams by customers in its banking group (including Lloyds Bank, Halifax and Bank of Scotland) between January and September 2023, compared with the equivalent period last year. Victims are losing £10,741 on average, up from £7,010 last year, the bank said, with many of the scams it analysed originating on social media. The most common age range for crypto scam victims is 25 to 34 years old, Lloyds said. Would-be crypto investors typically make an average of three payments before they realise they have been scammed, taking around 100 days from the date of the first transaction before they report it to their bank, Lloyds added. Crypto is a highly risky asset class and remains largely unregulated, which makes it an attractive area for fraudsters to exploit Liz Ziegler, Lloyds Bank Fraudsters often pose as investment managers, promising that any payments made by the victim will be invested on their behalf, often with the promise of huge returns. Sometimes the victim will be shown a fake investment account, suggesting that the funds are already making a profit, or a small amount of money will be transferred back into their bank account. But often there is no genuine crypto holding and the fraudster will disappear. In some cases, there will be an actual investment account held in the victim’s own name and registered with a legitimate platform. But once funds have been deposited, victims may be tricked into handing over their account login details, or passing control of their digital wallet over to the fraudster. They might also be directed to transfer cryptocurrency from within their own account to another digital wallet, which is under the control of criminals. Liz Ziegler, fraud prevention director at Lloyds Bank, said: “Crypto is a highly risky asset class and remains largely unregulated, which makes it an attractive area for fraudsters to exploit. If something goes wrong, you’re unlikely to get your money back.” Here are Lloyds’ tips for protecting yourself from crypto fraudsters: – Criminals often put adverts for scam crypto investments on social media. They can also send offers by direct message. They will promise returns that you cannot get elsewhere or make claims about “guaranteed” profits. If you are contacted out of the blue about an investment, it is likely a scam. – Fraudsters can easily set up fake companies, social media profiles and websites to clone real firms. Use the Financial Conduct Authority (FCA) website to find genuine contact details for a company and check for warnings about fake firms. Always do your own research or seek professional financial advice. – Never share the log in details for your investment account or your private cryptocurrency keys with anyone else. A legitimate firm would never ask you for this. Remember, if you transfer funds to another account that is not in your name, you have lost control of your money. – Fraudsters may ask you to pay an account in a different name to the company you are meant to invest with. If the names do not match, it is a sign of a scam. Paying by card (rather than a bank transfer) may offer you more protection if something goes wrong. Read More Council investigating extent of cyber attack that affected website and systems Setback for Ireland as EU legal adviser recommends revisit of Apple tax case Smartphones ‘may be able to detect how drunk a person is with 98% accuracy’ Ireland and Apple await major development in long-running EU tax dispute Guidance urges parents not to buy smartphones for primary school children William ‘blown away’ by futuristic technology from Singapore start-ups

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