The SCIENCE of ALIENS: Garry Nolan & Avi Loeb (#275)
Into the Impossible With Brian Keating
00:00
Earth's Atmospheric Atmosphere
We have a 50% chance to conclude that life exists if there is oxygen. There wasn't much oxygen in the first half of the life of the Earth. Within a billion years from now, the sun will boil off all the oceans on Earth. We don't have much time left anyway. Most stars like... You see how many we have 10 years? But one thing to keep in mind, most stars like the sun formed 5 billion years before the sun. So they already went through that.
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