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Invention of liquid-fuel rocket
Robert Goddard inventeded the liquid-fuel rockets, also called rocket engines -
The space age
This period began when the Sovietic Union launched Sputnik 1, the first artificial object to orbit the earth. -
Explorer 1
The United States responded in January with its first satellite a 31-pound craft named Explorer 1 -
First person to travel in space
A Soviet cosmonaut Yuri Gagarin vecame the first person to travel in space when he made a single orbit around the Earth -
America's first person in space
1 month after Gagarin robited the earth, Alan Shepherd became America's first person in space -
First woman to fly in space
Valentina Tereshkova, the pilot of Vostok 6, became the first woman to fly in space -
First EVA
The Soviets accomplished another first by launching three cosmonauts aboard a single spacecraft Voskhod 1. Voskhod 2 carried an airlock, allowing for ten minutes performing the first Extra Vehicular Activity (EVA) -
Apollo 11
The first mission to actually land a manned spacecraft on the moon. -
Salyut 1
The USRR launched Salyut 1. Although Salyut 1 was used only briefly -
LM Challenger
The last astronauts to visit the moon boarded the LM Challenger and took off from the moon's surface. -
Skylab
The United States launched its first soace station Skylab. -
The space shuttle
United States launched the space shuttle Columbia, a new type of spacecraft. The space shuttle was the first spacecraft designed to be reused -
Mir
Based on the Salyut program, the Soviet Union launched the space station Mir. -
International Space Station
President Ronald Reagan on the United States to construct a new space station. The first module of the station was launched in 1998 and the first ISS crew arrived on 2000 -
Yang Li-wei
A chinese astronaut orbited the earth 14 times. China became the third nation to successfully launch a manned spacecraft.
