Gravity From Discover Magazine, here's a great article all about gravity and how little we really do know. We've always thought gravity ended with Einstein. Everything kinda worked, and made sense. Or did it? We've had to invent dark matter, and other very interesting things to fill our universe to explain away observations. But what if we didn't really get gravity right in the first place? What if on really large scales, gravity acted ... well, not like we expected? What then? Well, this article collects some of the more interesting ideas. Check it out!

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