The first artificial satellite, Sputnik-1, was launched into orbit around the earth on October 4, 1957.
On July 21, 1969, American astronauts Neil Armstrong and Edwin Aldrin Jr became the first humans to set foot on the moon.
Soviet astronaut Alexei Leonov makes history on March 18, 1965, by performing the first-ever "spacewalk."
Valentina Tereshkova, a Soviet cosmonaut, becomes the first woman in space on June 16, 1963.
Syncom-3, a communications satellite, successfully enters a geostationary orbit on AUGUST 19, 1964, and seems to be stationary in space above the equator.
On APRIL 12, 1961, Yuri Gagarin of the Soviet Union became the first person to orbite the Earth in "Vostok 1,"
The first successful launch of a weather satellite was TIROS-1 on April 1, 1960.
The Soviet Union launched Luna 1, the first spacecraft to achieve escape velocity and orbit the Sun, on January 2, 1959.
On NOVEMBER 3, 1957, a dog named "Laika" became the first animal to be launched into orbit around the Earth, demonstrating that both people and other living beings can survive a rocket launch into space.