February 26, 2016 10:42 AM
Since the universe is so huge, most astronomers think that there must be a planet, somewhere out there, similar to Earth. But a computer model created at Sweden’s Uppsala University says that our planet may in fact be the only one supporting life.
Astrophysicist Erik Zackrisson combined all human knowledge about how the universe was created, from the Big Bang to the present, and fed it to a powerful computer. The machine came up with a concrete number of what we already knew. There are about 700 quintillion planets, or 7 followed by 20 zeros.
The unexpected by-product of the calculation was that Earth may be unique, actually an aberration among myriads of dead, uninhabitable worlds.
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