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(Russian) Konstantin Tsiolkovsky
Konstantin Tsiolkovsky realizes that liquid propellants would give rocks the speed to escape Earth's gravity. He develops an equation for escaping Earth's gravity. -
(German) Hermann Julius Oberth
Hermann Julius Oberth wrote about the basic principles of space flight and suggested rocket with stages. -
(American) Robert Goddard
Robert Goddard conducted the first successful flight of a liquid-propellant rocket. -
(German) Wernher Von Braun's
Wernher Von Braun's developed the V-2 rocket. -
NASA Founded
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Pioneer 4 Lunched
Pioneer 4 space probe lunched to pass within 37 miles of the moon and then fall into a solar orbit. -
Mercury Friendship 7
Mercury Friendship 7 lifts off with John H. Glenn, Jr. to orbit the Earth 3 times with the first American to orbit the Earth. -
Apollo 11
Neil Armstrong and Edwin Aldrin, Jr. make the first manned soft landing on the moon and are the first to walk on the moon. -
Pioneer 11
Pioneer 11 launches to fly past Jupiter in 1974 and Saturn in 1979. -
Viking 2
Viking 2 lands on Mars in the Plain of Utopia where it discovered water frost. -
Space Shuttle Columbia
First manned mission of Space Shuttle Columbia launched. -
Venera 13
Venera 13 lands on Venus, and provides the first Venusian soil analysis. -
Edwin P. Hubble Space Telescope deployed
Space Shuttle Discovery launches and deployes the Edwin P. Hubble Space Telescope. -
Cassini/Huygens Space Probe Launch
Launch of the double probe Cassini/Huygens, aimed at Saturn arriving in 2004. -
Mars Rovers
The Mars rovers Spirit and Opportunity land on opposite sides of Mars to take images of the surface and preform chemical experiments. -
ISS
The International Space Station has been continuously manned for 11 years. This project is a joint effort by 5 participating agencies: the American NASA, the Russian RKA, the Japanese JAXA, the European ESA, and the Canadian CSA.
