The Cold War was a period of geopolitical tension between the United States and the Soviet Union and their respective allies, which began after the Second World War and lasted until the collapse of the Soviet Union in 1991.

The Space Race was a competition between the United States and the Soviet Union to achieve firsts in space exploration, particularly in reaching the moon.

Neil Armstrong was an American astronaut and aeronautical engineer who became the first person to walk on the moon on July 20, 1969.

The Soviet Union launched Sputnik 1, the first artificial satellite, into orbit on October 4, 1957.

Project Apollo was the American space program that landed the first humans on the moon.

Yuri Gagarin was a Soviet cosmonaut who became the first person to travel into space on April 12, 1961.

Columbia, Challenger, Discovery, and Atlantis were all American space shuttles that were used for multiple missions.

The Soviet Union was the first country to launch a probe to Mars, Mars 2, in 1971.

The International Space Station was a joint project of the United States, Russia, and other countries that was in orbit from 1998 to 2011.

The Soviet Union was the first country to send a probe to Venus, Venera 3, in 1966.

The Hubble Space Telescope was an American space telescope that was launched in 1990 and revolutionized our understanding of the universe.

The United States was the first country to send a probe to Jupiter, Pioneer 10, in 1973.

Voyager 1 and Voyager 2 were American space probes that were launched in 1977 to study the outer planets.

The United States was the first country to send a probe to Saturn, Pioneer 11, in 1979.

The Parker Solar Probe is an American space probe that was launched in 2018 to study the Sun.