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The Apollo 10 crew (Thomas Stafford, John W. Young and Eugene Cernan) achieved the highest speed relative to Earth ever attained by humans: 39,897 kilometers per hour (11,082 meters per second or 24,791 miles per hour, about 32 times the speed of sound and 0.0037% of the speed of light). [14]
Apollo 13 [25] [note 1] 24 September 1970: First automatic sample return from the Moon. USSR Luna 16: 17 November 1970: First rover on another celestial body (the Moon). First lunar rover. USSR Lunokhod 1: 12 December 1970: First X-ray orbital observatory. USA (NASA) Uhuru: 15 December 1970: First soft landing on another planet (Venus).
While the SS2 achieved a speed of Mach 1.2 (920 mph), [41] this was less than half the 2,000 mph speed predicted by Richard Branson. SpaceShipTwo's second supersonic flight achieved a speed of 1,100 mph for 20 seconds; while this was an improvement, it fell far short of the 2,500 mph for 70 seconds required to carry six passengers into space.
Yuri Gagarin became the first Soviet and the first human to reach space, on Vostok 1. 5 May 1961 Alan Shepard became the first American to reach space, on Freedom 7. 20 February 1962 John Glenn became the first American to orbit the Earth. 16 June 1963 Valentina Tereshkova became the first woman to go into space and to orbit the Earth. 2 March 1978
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.
The programme carried out six crewed spaceflights between 1961 and 1963. The program was the first program to put humans into space, with Yuri Gagarin becoming the first man in space on April 12, 1961, aboard the Vostok 1. [79] Gherman Titov became the first person to stay in orbit for a full day on August 7, 1961, aboard the Vostok 2. [80]
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The earliest known galaxies existed by about 380 Ma. Galaxies coalesce into "proto-clusters" from about 1 Ga (redshift z = 6 ) and into galaxy clusters beginning at 3 Ga ( z = 2.1 ), and into superclusters from about 5 Ga ( z = 1.2 ). See: list of galaxy groups and clusters, list of superclusters. Reionization: 200 Ma ~ 1 Ga (Exact timings ...