Invisible Universe
The Infinite Monkey Cage
00:00
Is There a Dark Energy in the Universe?
dark energy is made up of particles too small for to see, and so we can't see their influence because maybe they are smaller than photons. If you had a box of this dark energy and you expand the box, then, in fact, you end up with more dark energy in that box than you started with. And that's just completely different, obviously, to ordinary matter.
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