A man who claims to be a time traveler from the year 2033 has shared a series of "shocking" predictions for the future of humanity, including the alleged arrival of aliens in 2028 and worldwide peace ...

Our first contact with extraterrestrials is likely to be when their entire civilisation is in its final moments of total collapse. According to a top scientist, the first aliens we detect will be ...

Add Yahoo as a preferred source to see more of our stories on Google. Neil deGrasse Tyson, left, and an illustration of a flying saucer. "The real transition for me was the high-ranking officials who ...