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First American Satellite
America launched its first satellite. Weighing only 30 pounds, Explorer 1 was launched into orbit by the Army on a Jupiter-C rocket. The satellite contained several scientific instruments. -
NASA is Born
The National Aeronautics and Space Administration (NASA) is founded, taking over the responsibilities of the existing National Advisory Committee on Aeronautics. Since that time, most US space exploration efforts have been led by NASA, including the Apollo moon-landing missions, the Skylab space station, and later the Space Shuttle. Currently, NASA is supporting the International Space Station and is overseeing the development of the Orion Multi-Purpose Crew Vehicle, the Space Launch System. -
First Spacecraft to Achieve Solar Orbit
The Russian satellite Luna 1 is launched in an attempt to hit the Moon. The spacecraft misses the Moon and is flung out into space by the Moon's gravity. It becomes the first man-made object to achieve an orbit around the Sun. -
First Spacecraft to Impact on the Moon
The Russian satellite Luna 2 is launched. On September 13, it becomes the first man-made object to hit the Moon. The spacecraft was sterilized to avoid contaminating the Moon with terrestrial bacteria. -
First View of Moon's Far Side
The Russian satellite Luna 3 is launched, orbiting the Moon and photographing 82 percent of the Moon's far side. About 18 percent of the far side is occasionally visible from Earth due to libration. The remaining 82 percent remained unobserved until 1959, when the Soviet Union's Luna 3 space probe photographed it. -
First Weather Satellite
Tiros 1, the first successful weather satellite, is launched by the United States. Two television cameras in the satellite returned views of clouds above the Earth. Tiros 1 was only operational for 78 days, but proved that satellites could be useful tools for surveying weather conditions from space. -
First Man in Space
Russian Cosmonaut Yuri Alekseyevich Gagarin became the first human to venture into space. The Vostok 1 spacecraft made one complete orbit around Earth in 108 minutes, and reached altitudes of 112 to 203 miles. The flight lasted only one hour and 48 minutes. -
First American in Space
On May 5, 1961, Astronaut Alan Shepard became the first American to be launched into space. Shepard's suborbital flight lasted only15-minutes, during which time he experienced about 5 minutes of "weightlessness". Also he tested the maneuvering capability of his Mercury capsule. -
President Kennedy's Historic Speech
Just 20 days after Alan Shepard's flight, President John F. Kennedy made his historic speech to Congress. He challenged the nation to land "a man on the Moon and return him safely to Earth" before the end of the decade. His challenge worked they did it. -
First American in Orbit
Astronaut John H. Glenn was launched into orbit aboard an Atlas D rocket. When he reached space he became the first American to orbit the Earth. Glenn made a total of 3 complete orbits, and the flight time was 4 hours and 56 minutes. -
First man on the moon
Apollo 11 was the spaceflight that landed the first humans on the Moon, Americans Neil Armstrong and Buzz Aldrin, on July 20, 1969, at 20:18 UTC. Armstrong became the first to step onto the lunar surface six hours later on July 21 at 02:56 UTC. Armstrong spent about two and a half hours outside the spacecraft, Aldrin slightly less, and together they collected 47.5 pounds (21.5 kg) of lunar material for return to Earth.
