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solid-fuel rockets
also called rocket motors, have been used since the 1200s to launch fireworks and small military rockets. -
Robert Goddard
in 1926, Robert Goddard, "the farther of Modern Rocketry"invented the liquid-fuel rocket. -
liquid-fuel rocket
also called rocket engines,use various combinations of liquid chemicals that expand greatly when they react with each other. -
Wernher Von Braun
he built V-2 bllistic missile,one of the first modern rockets. -
Race to the moon: Sputnik and Explorer.
The space age began on october 4, 1957, when the stoviet Union launched sputnik 1, Less than a month later, a dog named Laika was launched aboard the 1100-pound satellite spuntnik 2, becoming the firs living creature to orbit the earth. -
Eplorer 1
Although smaller than the Sovoet satelites, Explorer 1 carried scientific instrument that led to a major discovery, the discovery of the Van Allen radiation belts, large regions of solar wind particles trapped in the magnetosphere. -
Vostok and Mercury.Yuri Gargarin
On April 12, 1961,Soviet cosmonaut(astronaut)Yuri Gagarinbecame the first person to travel in space when he made a single orbit arround the earth in his Vostoc 1 spacecraft. -
Alan shepard.
Alan shepard,On May 5, one month after Gagarin orbited the earth, Alan Sheperd became America's first person in space with fifteen-minute suborbital hop in the Freedom 7 Mercury spacecraft. -
Jhon Glenn.
In 1962 in the friendship 7 mercury space-craft became the first American to orbit earth. -
Valentina Tereshkova
in 1963 Valentina Tereshkova the pilot of Vostok 6, became the first woman to fly in space. -
Apollo
With the Apollo program, America finally took the lead in the space race. -
Saturn V
the larger IB rocket is Saturn V. -
Space Stations
People could live and work for months at a time -
Salyut
Although Salyut space stations were succeessfully operated. -
Skylab
The United Sataes launched its first space station, in 1973. -
space shuttle
On April 121981, the United launched the space shuttle Columbia, a new type of spacecraft. -
Mir
The soviet Union lauched the Soviet Uniot launched the sace station Mir in 1986. -
Neil amstrong
Became the first human being to set foot on another world. -
International Space station
By 2000, over fifteen nations were working togethet to build what is now called the International Space Station. -
Soyuz
With the retirentment of the space shutte, the russioan soyuz spacecraft. -
Yang Liwei
Chinese astronaut Yang Liwei orbited the earth 14 times in his shenshou 5 spacecraft. -
EVA
An EVA, or Extra Vehicular Activity , is any activity performed by an astronout outside a sapacecraft; EVA's are sometimetimes called space walks.
