Edwin Hubble showed galaxies recede with a velocity proportional to their distance

Hubble's Law: v = H₀d, where v is recession velocity, H₀ is Hubble's constant, and d is distance

Image: Walter Rademacher, derivative work Lämpel, CC BY-SA 3.0, via Wikimedia Commons

Edwin Hubble showed galaxies recede with a velocity proportional to their distance

Hubble's Law: v = H₀d, where v is recession velocity, H₀ is Hubble's constant, and d is distance

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