Life on Earth came to be billions of years ago, shortly after the planet cooled and liquid water became available. But according to researchers, we only have about one billion years left until life on the surface of Earth is wiped out. Our sun is growing hotter and hotter, and eventually surface life on Earth will be obliterated by the sun's growing radiation. Life beneath the surface, however, has a little more time. The reserves of water deep underground will be able to protect microbial life for billions of years after life on Earth's surface dies off. Meanwhile, in the next 5 billion years, the sun will consume both Mercury and Venus.
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Key Facts In This Video
Life on Earth appeared shortly after the planet cooled and liquid water became available. 00:03
We have less than a billion years to enjoy the surface of Earth before it becomes inhospitable. 00:46
Reserves of water deep underground will protect microbial life for billions of years after life on Earth's surface dies off. 02:22
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