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The United States has developed many space programs since the beginning of the spaceflight era in the mid-20th century. The government runs space programs by three primary agencies: NASA for civil space; the United States Space Force for military space; and the National Reconnaissance Office for intelligence space.
This is a timeline of space exploration which includes notable achievements, first accomplishments and milestones in humanity's exploration of outer space.. This timeline generally does not distinguish achievements by a specific country or private company, as it considers humanity as a whole.
Program Start date First crewed flight End date No. of crewed missions launched Notes Mercury program: 1958 1961: 1963: 6: First U.S. crewed program Gemini program: 1961 1965: 1966: 10: Program used to practice space rendezvous and EVAs: Apollo program: 1960 1968: 1972: 11: Landed first humans on the Moon Skylab: 1964 1973: 1974: 3: First ...
Due to its large size, the timeline has been split into smaller articles, one for each year since 1951. There is a separate list for all flights that occurred before 1951. The list for the year 2025 and for its subsequent years may contain planned launches, but the statistics will only include past launches.
First British satellite in space (on American rocket) July 10 US: Telstar 1: Thor-Delta: Earth Success: Communication satellite July 22 US: Mariner 1: Atlas-Agena: Venus Failure: Software related guidance system failure, range safety officer ordered destroyed after 294.5 seconds after launch. August 27 US: Mariner 2: Atlas-Agena: Venus Success
The program, which took its name from Roman mythology, cost $2.68 billion (adjusted for inflation). [1] [n 1] The astronauts were collectively known as the "Mercury Seven", and each spacecraft was given a name ending with a "7" by its pilot. The Space Race began with the 1957 launch of the Soviet satellite Sputnik 1. This came as a shock to the ...
The Mercury-Redstone Launch Vehicle, designed for NASA's Project Mercury, was the first American crewed space booster.It was used for six sub-orbital Mercury flights from 1960–1961; culminating with the launch of the first, and 11 weeks later, the second American (and the second and third humans) in space.
The National Aeronautics and Space Administration (NASA / ˈ n æ s ə /) is an independent agency of the US federal government responsible for the United States' civil space program, aeronautics research and space research.