Our galaxy is home to more than 50 billion planets…and 500 million potentially habitable ones [Astronomy]

20 Feb
The Kepler telescope discovered more than 1,200 planets in just one tiny corner of the Milky Way. Crunching the numbers, a conservative estimate says there should be at least fifty billion planets in the entire galaxy, and about 500 million of those should be inside the habitable zone. But how many of those planets have life on them, let alone other intelligent beings? That's the question we still can't answer...but we're getting closer. More »

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