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Why would dark energy be a hack? We know that the universe's expansion is accelerating. Since it's accelerating, and not expanding at a constant rate, that mean

Why would dark energy be a hack? We know that the universe's expansion is accelerating. Since it's accelerating, and not expanding at a constant rate, that means there has to be something driving that. Dark energy is basically a "placeholder" term to describe the phenomenon.

Rury 4y ago
>We know that the universe's expansion is accelerating Correction. We don't know this for fact. It's the prevailing theory fitting the phenomena we observe.
nitwit005 4y ago
> We know that the universe's expansion is accelerating. That still seems to be a matter of serious dispute.