3 and a half years by my reckoning.

The Russians sent up sputnik on October 4 1957 and on Feb 12th 1961 they launched a rocket to Venus.

I'm going to go with Sergei Aleksandrovich Afanas'ev because he's the first onthis page

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"I will do my best to understand and explain the universe from big to small without invoking miracles, unrepeatable events, or divine intervention. In place of those things I will use observations, mathematics, and science."


-Cross
My travel blog

Some of my Astrophotography


Those that lack education have a hard time understanding its value. - Cross