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A Nasa scientist has said chemicals found on Mars would be considered signs of ancient life if they were found on Earth, leading to suggestions the Red Planet could potentially have harboured life. Dr Michelle Thaller said: “On Mars we see chemistry that on Earth, if it were here, we would say is due to life. “But the question is, how well do we understand Mars and are we being fooled by something?” It’s not a done deal, of course. Signs of ancient life that we find regularly on Earth may not mean the same thing elsewhere, particularly with the vastly different conditions between the two planets. Dr Thaller told The Sun she is certain there is life out there in our solar system, but did not reveal the exact chemical substance that had been found. Nasa has previously found methane on Mars, which it said “could have supported ancient life”, and the organisation has also revealed plans to look for amino acids that haven’t yet been destroyed by space radiation. Organic chemicals like amino acids are used by archaeologists to determine whether life was present. A blog post from the US space agency said: “Amino acids can be created by life and by non-biological chemistry. “However, finding certain amino acids on Mars would be considered a potential sign of ancient Martian life because they are widely used by terrestrial life as a component to build proteins. “Proteins are essential to life as they are used to make enzymes which speed up or regulate chemical reactions and to make structures.” Alexander Pavlov of Nasa’s Goddard Space Flight Center in Greenbelt, Maryland, added: “Our results suggest that amino acids are destroyed by cosmic rays in the Martian surface rocks and regolith at much faster rates than previously thought. “Current Mars rover missions drill down to about two inches (around five centimeters). “At those depths, it would take only 20 million years to destroy amino acids completely.” That may sound like a long time, but Nasa is looking for life that is billions of years old, because scientists think Mars would have been more like Earth back then. Dr Thaller said it was important not to actually say there were signs of life until there is 100 per cent confirmation. “The solar system may be teeming with simple life, microbial life. “We just have to get that 100% certainty to say that we found it and we don’t have that yet.” 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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KSI will box Tommy Fury in Manchester on Saturday night, in a bout that will surely be one of the most watched of the year. YouTuber KSI (real name Olajide Olatunji) has crossed into boxing, rapping and business in recent years, partnering with ex-opponent Logan Paul to launch the energy drink company Prime in 2022. Next up for the 30-year-old is this clash with Fury, who some will know from his stint on the reality TV show Love Island, though others will know him as the half-brother of heavyweight boxing champion Tyson Fury. Tommy, 24, is undefeated as a professional, while fellow Briton KSI has also never been beaten – though he has less experience in the pro ranks. In the co-main event, Paul will be in action against fellow American Dillon Danis, a former teammate of UFC star Conor McGregor. Here’s all you need to know. We may earn commission from some of the links in this article, but we never allow this to influence our content. This revenue helps to fund journalism across The Independent. When is the event? The fights are set to take place on Saturday 14 October at the AO Arena in Manchester. The main card is due to begin at 7pm BST (11am PT, 1pm CT, 2pm ET). Paul vs Danis is likely to take place at around 10.30pm BST (2.30pm PT, 4.30pm CT, 5.30pm ET), with ring walks for KSI vs Fury expected at 11.30pm BST (3.30pm PT, 5.30pm CT, 6.30pm ET). How can I watch it? The event will air live on Dazn pay-per-view, at a cost of £19.99 in the UK and $54.99 in the US. If you’re travelling abroad and want to watch the event, you might need a VPN to unblock your streaming app. Our VPN round-up is here to help and includes deals on VPNs in the market. Viewers using a VPN need to make sure that they comply with any local regulations where they are and also with the terms of their service provider. Odds KSI – 5/2; Fury – 2/7 Paul – 2/9; Danis – 3/1 Full odds via William Hill. • Get all the latest boxing betting sites’ offers Full card (subject to change) • KSI vs Tommy Fury • Logan Paul vs Dillon Danis • Salt Papi vs Slim Albaher • Deen The Great vs Walid Sharks II • King Kenny vs Anthony Taylor • Whindersson Nunes vs My Mate Nate • NichLmao & Alex Wassabi vs Luis Alcaraz Pineda & BDave • Astrid Wett vs Alexia Grace • Swarmz vs Ryan Taylor II • Chase DeMoor vs Tempo Arts S-X vs DTG Read More Who is KSI? From ‘endearing’ class clown to YouTuber who has changed the face of boxing Tommy Fury explains why he has ‘never been fan’ of KSI ahead of crunch boxing match Let’s get ready to rumble! Inside the ropes with boxing’s ring announcers KSI ‘spits’ back at John Fury from balcony after having a bottle thrown at him Tommy Fury posts nine-week body transformation as he goads fight rival KSI Who is the back-up fighter for Logan Paul vs Dillon Danis?

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