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Space

Radiolab

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The End of the Universe

If we've got a spacecraft crawling through the vast, vast empty universe, how long a trip is it for just to start from wherever it is now? And by the way, what is where is the end of the universe? That's a very natural question. You know, in most environments, you can walk for a while, but then you hit the end. But when it comes to the universe, we believe that there's probably no edge, there is no end.

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