A mysterious intergalactic force is pushing against the Milky Way

An artist’s depiction of superclusters in the universe. (Image credit: Mark Garlick/Science Photo Library)

Paul M. Sutter is an astrophysicist at SUNY Stony Brook and the Flatiron Institute, host of “Ask a Spaceman and “Space Radio“and author of”How to Die in Space

It sounds like the premise of a bad sci-fi movie: There’s some mysterious entity, beyond the boundaries of our galaxy, that is pushing against us with incredible force. We don’t know exactly what it is, and we don’t know how long it’s been there. But we do know its name: the dipole repeller.

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