-
Sputnik I
The first artificial satellite sent in space. -
First U.S. Citizen in Space
Alan B. Shepard became the first U.S. citizen in space. -
First Person in Space
Yuri A. Gagarin became the first human sent in space. -
First U.S. Citizen to Orbit Earth
Astronaut John Glenn became the first U.S. citizen to orbit the Earth. -
Project Apollo
Apollo 11 landed on the Moon's surface, and Neil Armstrong was the first human to set foot on the Moon. -
Voyager a and Voyager 2
Space probes Voyager 1 and Voyager 2 were launched in 1977 and are now headed into deep space. Voyager 1 flew past Jupiter and Saturn, and Voyager 2 flew past Jupiter, Saturn, Venus and Neptune. -
Galileo
Galileo was launched in 1989, and reached Jupiter in 1995. In July 1995 Galileo released a smaller probe that began a five month approach to Jupiter, and took a parachute ride through Jupiter's violent atmosphere in December 1995.