Hear the FIRST-ever artificial signals from space, transmitted by the #USSR‘s #Sputnik1 on 4 October 1957.
Sputnik 1957 – history’s first artificial signals from space
History changed on 4 October 1957, when the Soviet Union successfully launched Sputnik I. The world’s first artificial satellite was about the size of a beach ball (58 cm across), weighed only 83.6 kg
