On March 9, 1961, the Soviet Union launched Sputnik 9. This mission was a test flight of the Vostok spacecraft, which would later carry the first cosmonauts into space. See how it happened in our On This Day in Space video series.
On This Day In Space! March 9, 1961: Soviet Union Launches Dummy, Dog and Guinea Pig
by Space.com | Mar 9, 2018 | Uncategorized |