The Biggest Problem With The Expanding Universe

(Starts With A Bang!) – Ethan Siegel:

The measurements we’re seeing at late times tell us that the Universe is expanding about 8% faster than we would have expected based on the early-time measurements. Is there something funny happening in physics; is there perhaps an extra neutrino that’s playing games with us? Or is dark energy something different than what we thought, and does this mean the Big Rip scenario, where the Universe tears itself apart billions of years in the future, is likely after all? …

starts-with-a-bang 1fbc0fda1e63

Big Bang to Big Rip

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