Video: Leading physicist says evidence shows interstellar object is not natural | Daily Mail Online

Leading physicist says evidence shows interstellar object is not natural and could be an alien spacecraft. Professor Avi Loeb, a theoretical physicist and cosmologist from Harvard University, says the interstellar object is simply too big to be natural. Experts suggest that it must either be an exceptionally large solid mass or a smaller comet with a bright envelope of gas and dust. If it is not a comet, Professor Loeb says 3I/ATLAS is so impossibly large that the chances of it naturally reachi