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Chris Diperi
Chris Diperi

Chris Diperi

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From Ask Ethan: If gravity attracts, how does the ‘dipole repeller’ push the Milky Way? by Ethan Siegel

…nd blueshifted in the other (meaning we’re moving towards it), and we can reconstruct the motion of the entire local group as a result. Us, Andromeda, Triangulum and everything else is moving at a speed …

From Ask Ethan: If gravity attracts, how does the ‘dipole repeller’ push the Milky Way? by Ethan Siegel

… giant cluster of galaxies — the Virgo cluster — get extra speeds of up to 2,000 km/s on top of the Hubble flow we see. And when we look at the Big Bang’s leftover glow, the Cosmic Microwave Background, we’re ab…

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Ask Ethan: Could The Energy Loss From Radiating Stars Explain Dark Energy?

Ethan Siegel

I’m puzzled that you don’t mention the primordial B-mode searches.

Michael Weissman