Lesson 2: Dark energy and dark matter fill Emptin - Deepstash

Lesson 2: Dark energy and dark matter fill Emptin

So we know that the universe is expanding, but what is causing this? Just as blowing a balloon up requires air, so does our universe have a force pushing it outward. The trouble is, there’s nothing we can observe that’s causing this. Physicists thus call this force in empty space “dark” energy. But they still can’t explain where this propelling force comes from or even what it really is.  

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tomjoad

Introverted Extravert

A Universe From Nothing - Book Summary

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