RT @SciencePorn: On this day, sky was no longer a limit. On 12 April 1961, first human left the earth and visited the cosmos. http://t.co/AXocYIbgXk
RT @SciencePorn: On this day, sky was no longer a limit. On 12 April 1961, first human left the earth and visited the cosmos. http://t.co/AXocYIbgXk