>>2796594Definitely not, a wave is a transfer of energy. Energy itself is god fucking knows, it basically just works.
>In physics, energy is the property that must be transferred to an object in order to perform work on, or to heat, the object.Wikipedia gives that which seems pretty good to me.
>Is anything outside our space/time dark energy?No, if dark energy exists (it's hypothetical at the moment) it exists in our universe and accelerates the expansion of the universe. It, and dark matter, are called dark because we can't observe them, ie. we can't see them, hence dark. It's still just a type of energy though.
Also it's pointless to talk about anything outside of the observable universe, let alone the entire universe, as we cannot possibly know anything about it. And I mean cannot; information cannot travel faster than C, hence it is impossible to know of anything outside the observable universe, hence the name.
