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travel
As people began to dream of flying above Earth's surface, they realized that objects in the sky could become destinations for human travelers. In the early 1600's, the German astronomer and mathematician Johannes Kepler became the first scientist to describe travel to other worlds. -
laws of motion
The English scientist Sir Isaac Newton first described the laws of motion in a work published in 1687. -
Space Age
The Soviet Union launched Sputnik, the first artificial satellite to obit Earth. -
First Piloted Space Flight
The first piloted space flight was made on April 12, 1961, when Yuri A. Gagarin, a Soviet cosmonaut, orbited Earth in the spaceship Vostok -
piloted voyage
U.S. astranauts Neil Armstrong and Buzz aldrin lnded their Apollo 11 lunar module on the moon. Armstrong became the first person to set foot on the moon. -
The First Reusable Spaceship
On April 12, 1981, the United States space shuttle Columbia blasted off. The shuttle was the first reusable spaceship and the first spacecraft able to land at an ordinary airfield. -
U.S. Space shuttle accident
On Jan. 28, 1986, a tragic accident occurred. The U.S. space shuttle Challenger tore apart in midair, killing all seven astronauts aboard.. -
Creation of X prize
In 1996, an organization called the X Prize Foundation announced the creation of the X Prize competition to stimulate interest in private space travel. The group offered a $10 million award to the first privately funded team to build and launch a craft capable of carrying a pilot and two passengers into space. To qualify for the prize, the craft had to fly to an altitude of 62 miles (100 kilometers), land safely, and then make a repeat flight within two weeks. -
first satellite
iran sent it first satellite to orbit in 2009 -
Space Shuttle Atlantis
On July 21, 2011, the space shuttle Atlantis landed in Florida after a mission to the ISS. The mission, designated STS-135, was the last shuttle mission before the craft were retired.
