2012/12/06 by Steer, Ian
#Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #History and Philosophy of Physics (physics.hist-ph) #Instrumentation and Methods for Astrophysics (astro-ph.IM)
paper · doi:10.48550/arxiv.1212.1359
Lundmark established observational evidence that the Universe is expanding. Lemaître established theoretical evidence. Hubble established observational proof.