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Sputnik 1
Sputnik 1 was the first artificial Earth satellite. The Soviet Union launched it into an elliptical low Earth orbit. -
Laika the space dog
Laika became the first animal launched into orbit, paving the way for human spaceflight. Laika, a stray dog from the streets of Moscow, was selected to be the occupant of the Soviet spacecraft Sputnik 2 that was launched into outer space. -
Explorer 1
Explorer 1 was the first satellite of the United States, launched as part of its participation in the International Geophysical Year. The mission followed the first two satellites the previous year; the Soviet Union's Sputnik 1 and 2, beginning the Cold War Space Race between the two nations. -
Luna 1
It was the first spacecraft to reach the vicinity of the Earth's Moon, and the first spacecraft to be placed in heliocentric orbit. -
Alan Shepard
He was an American astronaut, naval aviator, test pilot, and businessman. In 1961 he became the first American to travel into space. -
Yuri Gagarin
He was a Soviet pilot and cosmonaut. He was the first human to journey into outer space when his Vostok spacecraft completed an orbit of the Earth. -
John Glenn
He was a United States Marine Corps aviator, engineer, astronaut, and United States Senator from Ohio. In 1962, he became the first American to orbit the Earth, circling it three times. -
Unmanned landing on the Moon
There have been six manned U.S. landings and numerous unmanned landings. -
Gemini program
Gemini was an early NASA human spaceflight program. Gemini helped NASA get ready for the Apollo moon landings. Ten crews flew missions on the two-man Gemini spacecraft. They flew between the Mercury and Apollo programs. https://www.nasa.gov/audience/forstudents/5-8/features/nasa-knows/what-was-gemini-program-58.html -
Apollo 1
Apollo 1 was a flash fire that swept through the command module during a launch rehearsal test. The three men inside had a hard time despite the best efforts of the ground crew. It took NASA 18 months to send people up there to save them. https://www.space.com/17338-apollo-1.html -
Apollo 8
Is the second spaceflight mission in the United States Apollo space program, it became the first manned spacecraft to leave Earth orbit, reach the Earth's Moon, orbit it and return safely to Earth
https://en.wikipedia.org/wiki/Apollo_8 -
Apollo 11
The objective of Apollo 11 was to perform a crewed lunar landing and return to Earth. https://www.nasa.gov/mission_pages/apollo/missions/apollo11.html