-
The soviet union launched sputnik
-
-
Yuri A. Gagarin, a Soviet cosmonaut, orbited Earth in the spaceship Vostok (later called Vostok 1).
-
-
-
-
United States astronaughts made 5 more landings on the moon
-
-
The U.S. space shuttle Challenger tore apart in midair, killing all seven astronauts aboard.
-