Ask an astronomer: What was Einstein’s most mind-blowing discovery?

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  • NASA astronomer and science communicator Michelle Thaller explains that the real brilliance of Albert Einstein is that he was able to bridge ideas that appeared to others to be in different realms.
  • The thing Einstein is most famous for is the equation E=mc2. Thaller explains why that equation is so mind-blowing: Pure energy and matter are the same thing. That means, as humans, we are both made of matter and of pure energy, and as pure energy, we would not experience space or time.
  • “I think that, once we really understand this, we’re going to be in for some very difficult truths to accept,” says Thaller. “It may be that there is no space or time as we know it, really.”

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