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What Exactly Are Brown Dwarfs?

Posted: 01-08-2019 01:52 AM
by Riddick
It sounds like the start of a really bad riddle: "I'm bigger than a planet, but I'm not a star. And I'm smaller than a star, but I'm not a planet. Who am I?"

But instead of a cheesy brain-teaser, this is actually an entry point into exploring just how astronomers classify the exotic objects of our universe. It's also an opportunity to understand some of the weirdest citizens of the Milky Way.

The answer to the riddle, by the way, is "I'm a brown dwarf."