#OTD in 1957, Sputnik launched, marking the start of the Space Age. Listen to "the beep heard round the world" here: https://t.co/HAUUJ4SeoP pic.twitter.com/MSYDPXttzt— NASA History Office (@NASAhistory) 4 de octubre de 2017
#OTD in 1957, Sputnik launched, marking the start of the Space Age. Listen to "the beep heard round the world" here: https://t.co/HAUUJ4SeoP pic.twitter.com/MSYDPXttzt