Video: Bad news, guys. There's a limit to humanity. Even if we had the technology for interstellar space travel, we still wouldn't be able to see most of the observable universe because we're actually limited to only being able to go to a hundredth billionth of a per cent of it. We're stuck within our local galaxy group. That's sort of depressing! But why is there a limit anyway? Kurzgesagt explains how it has to do with dark energy, the nature of nothing and how only so many things in the universe are gravitationally bound to us. The good news is that we still have a trillion stars to explore before we even hit our limit and, considering that we still haven't even figured out how to leave our solar system, we have plenty of time before we'll run out of things to do.
What Is The Limit To How Far We Can Travel In Space?
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