SOLAR SYSTEM

Detailed explanation-1: -During the 1960s, NASA made progress toward President Kennedy’s goal of landing a human on the moon with a program called Project Gemini, in which astronauts tested technology needed for future flights to the moon, and tested their own ability to endure many days in spaceflight.

Detailed explanation-2: -Planning for a manned mission began in 1958 and resulted in the Vostok program, which ran from 1960 to 1963. The program was a great success and in April 1961 Yuri Gagarin became the first man to orbit the Earth aboard Vostok 1.

Detailed explanation-3: -The Space Race was a 20th Century struggle between two nation-states, the Soviet Union (USSR) and the United States (US). The pursuit for both was the domination of space flight technologies.

Detailed explanation-4: -Yuri Gagarin became the first human to orbit Earth in Vostok 1. His flight lasted 108 minutes, and Gagarin reached an altitude of 327 kilometers (about 202 miles). The first U.S. satellite, Explorer 1, went into orbit on Jan. 31, 1958.

Detailed explanation-5: -Within 10 years of that first human flight, American astronauts walked on the surface of the Moon. Apollo 11 crew members Neil Armstrong and Edwin (“Buzz”) Aldrin made the first lunar landing on July 20, 1969.