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A "mystery alien spaceship" could make contact with Earth today – according to some experts. The object, dubbed 3I/ATLAS, has been at the centre of speculation for months. While initially referred to as a comet, the space lump actually took on a slightly different appearance and behaviour compared to others, leaving one scientist particularly baffled. Harvard theoretical physicist Avi Loeb has warned for months that the object could be an "extraterrestrial artefact" which may be about to make first contact. In layman’s terms, aliens could be making their way to Earth today (October 29). While he has received plenty of criticism because of his theories, the latest developments show an interesting development in the object. Hubble Space Telescope images captured the "comet" with an unusual "anti-tail" – a jet of particles streaming towards the Sun. New high-resolution observations from the Nordic Optical Telescope in the Canary Islands confirm the anti-tail seen in July and August has vanished. NASA claim the object will simply pass us by untouched – but Loeb think it is up to no good. Loeb told science communicator and author Mayim Bialik: "If you want to take a vacation, take it before [October 29], because who knows what will happen?" Now that time has passed, there are a few things we can do to prepare for a potential alien invasion from the mothership. Previously described as "advanced alien object", the visitors could be like nothing we have ever seen before. It is not yet clear whereabouts on Earth the aircraft could land, but the effects would be felt all over. While there are many gaps in scientific explanations, some turn to literature for their alien survival guides. H. G. Wells, author of War of the Worlds, suggested that we should simply sneeze on the "invaders". He wrote: "But there are no bacteria in Mars, and directly these invaders arrived, directly they drank and fed, our microscopic allies began to work their overthrow." However, Loeb told us not to worry too much and even suggested that aliens might not be interested in our resources – but could simply be interested in us as a species. Due to the "billions" of years it takes to travel through the universe, Loeb suggested the aliens are "far more sophisticated and ahead of us humans". He continued: "They are much more sophisticated they wouldn't care much about us and it's actually an opportunity for us to learn about the future technologies that they posses. It would take us a long time to develop ourselves so for us it will be a learning experience." As for the dangers of an invasion, Loeb says not to worry. He concluded: "I see it in a very positive way." For the latest breaking news and stories from across the globe from the Daily Star, sign up for our newsletters .