Write Science

by Shane L. Larson

On 19 April 1610, Johannes Kepler wrote an open letter to Galileo Galilei, musing on possible future voyages that would allow explorers — human explorers — to see what Galileo’s telescope had shown.  He mused that some day inventors might “provide ship or sails adapted to the heavenly breezes, and there will be some who will not fear even that void.” Kepler called on Galileo to join him in preparing the way for those so0n to be travellers, and create a new science to light their way: astronomy.

Yuri Gagarin and the Vostok 1 launch on 12 April 1961. Yuri Gagarin and the Vostok 1 launch on 12 April 1961.

It was almost exactly 351 years before Kepler’s speculations were realized — on 12 April 1961 the Soviet Union launched cosmonaut Yuri Gagarin into space. In a flight that lasted only 108 minutes, Gagarin orbited the Earth in a capsule bearing the callsign Kedr (“

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