Representational Image (Photo Credits: Wikimedia Commons) The world is closing to annihilation as Earth will not be able to support and sustain life forever. Not a mere doomsday prediction, but real concern has been shown by researchers in their recent findings. As the ageing sun grows hotter, oceans on Earth will evaporate, and the atmosphere will escape into space. Scientists have found evidence that Earth will lose its oxygen-rich atmosphere in approximately one billion years. Yes, you read that, right! The Earth, formed approximately about 4.6 billion years ago, will lose its plant life, and without plant life, oxygen levels will also drop, causing a mass extinction event among animals.