We are still premature when it comes to life in space and life on other planets could be billions of years older than ours. The universe is 13.8 billion years old while our planet formed just 4.5 billion years ago. New theoretical work suggests that present-day life is actually premature from a cosmic perspective. “If you ask, ‘When is life most likely to emerge?’ you might naively say, ‘Now’. But we find that the chance of life grows much higher in the distant future,” said Avi Loeb of the Harvard-Smithsonian Center for Astrophysics.