Space & PhysicsRotating GalaxiesThat the Spiral Nebulae Rotate is Now Beyond a Doubt. Our Own is Not Much Larger than OthersBy Henry Norris Russell on June 1, 1942AdvertisementABOUT THE AUTHOR(S)Recent Articles by Henry Norris RussellGalactic Gas CloudsAnthropocentrism's DemisePlanet Companions