The Kepler telescope has changed how we see ourselves in the Universe

Twenty years ago, we didn't know if there were any planets orbiting stars other than our own. Today, it's estimated that each of the roughly 100-billion stars in our galaxy has, on average, 1.6 planets orbiting around it, as this video from astronomers and science-communicators Tony Darnell and Scott Lewis explains.


Did we mention that one in five of the sun-like stars in the Milky Way is theorized to be orbited by potentially habitable, Earth-like worlds? That puts the number of potentially habitable, Earth-size worlds in the Milky way at a conservative estimate of two-billion. How's that for a sense of perspective on one's place in the Cosmos?

[Via Universe Today]

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