59 Space Facts That Will Remind You Just How Large The Universe Truly Is

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59 Space Facts That Will Remind You Just How Large The Universe Truly Is
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Casually thinking about how we're just a tiny speck in the universe — no big deal.

— basically a self-destruct button for the universe! It's only speculative at this point, but it comes down to whether the universe is in a true or a false vacuum — a true vacuum is stable, but a false vacuum isn't. If a random quantum fluctuation allowed a false vacuum to release its potential energy, it would create a bubble of true vacuum that would expand at the speed of light and delete every single thing it touched.

Destruction would be instant, and depending on where it happened in the universe, we might never see it coming. Remember, this one is just a theory!This isn't a fact per se, but have you considered the possibility that we've already sent a message to an alien race in the distant past and it's still making its way to them?into space thousands of years ago and forgotten about it . We could either still be waiting for that message to arrive, OR waiting on a reply to travel back to us.

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