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John Herschel Glenn Jr. (July 18, 1921 – December 8, 2016) was an American Marine Corps aviator, astronaut, businessman, and politician.He was the third American in space and the first American to orbit the Earth, circling it three times in 1962. [3]
Gemini 6A/Gemini 7: 3 February 1966: First soft landing on another world (the Moon). First photos from another world. USSR Luna 9 [19] 1 March 1966: First impact into another planet (Venus). USSR Venera 3: 16 March 1966: First orbital docking between two spacecraft. USA (NASA) Gemini 8/Agena target vehicle: 3 April 1966
The show's name came from the promotional phrase "Mystery Scientist" used by magician Harlan Tarbell and a play on the name of Sun Ra's band, the Myth Science Arkestra. [11] The "3000" was added to spoof the common practice of adding "2000" to show and product names in light of then-upcoming 21st century, and Hodgson thought it would set his ...
Virgil Ivan "Gus" Grissom (April 3, 1926 – January 27, 1967) was an American engineer and pilot in the United States Air Force, as well as one of the original men, the Mercury Seven, selected by the National Aeronautics and Space Administration for Project Mercury, a program to train and launch astronauts into outer space.
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]
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 ...
The seasons have their names for a reason; they describe the weather common for that time of year. Here's why the coldest season is called "winter." Where did the name winter come from?
For the ratios of the radii of the outer planets' deferents to radius of the Earth, the Commentariolus gives 1 13 ⁄ 25 for Mars, 5 13 ⁄ 60 for Jupiter, and 9 7 ⁄ 30 for Saturn. For the ratios of the radii of their deferents to the radii of the larger of their epicycles, it gives 6 138 ⁄ 167 for Mars, 12 553 ⁄ 606 for Jupiter, and 11 ...