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16 hours ago · A replica of Luna 9, the first spacecraft to land on the Moon The first image taken of the far side of the Moon, returned by Luna 3 As part of human exploration of the Moon, numerous space missions have been undertaken to study Earth's natural satellite. Of the Moon landings, Luna 2 of the Soviet Union was the first spacecraft to reach its surface successfully, intentionally impacting the Moon ...
16 hours ago · The crewed Apollo program was developed in parallel; after a series of uncrewed and crewed tests of the Apollo spacecraft in Earth orbit, and spurred on by a potential Soviet lunar human landing, in 1968 Apollo 8 made the first human mission to lunar orbit (the first Earthlings, two tortoises, had circled the Moon three months earlier on the Soviet Union's Zond 5, followed by turtles on Zond 6 ...
16 hours ago · This is a list of all astronauts who have engaged in an EVA by partly or fully leaving a spacecraft, exclusive of extravehicular activity on the lunar surface. It is ordered chronologically by the date of first spacewalk. For a list of astronauts who have performed lunar EVA ("moonwalks") see List of Apollo astronauts who walked on the Moon.
16 hours ago · Robert Hutchings Goddard (October 5, 1882 – August 10, 1945) [1] was an American engineer, professor, physicist, and inventor who is credited with creating and building the world's first liquid-fueled rocket, which was successfully launched on March 16, 1926. [2] By 1915 his pioneering work had dramatically improved the efficiency of the ...
16 hours ago · The Rare Earth hypothesis argues that planets with complex life, like Earth, are exceptionally rare.. In planetary astronomy and astrobiology, the Rare Earth hypothesis argues that the origin of life and the evolution of biological complexity, such as sexually reproducing, multicellular organisms on Earth, and subsequently human intelligence, required an improbable combination of astrophysical ...
2 days ago · The United Nations agency working to promote health, keep the world safe and serve the vulnerable.
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16 hours ago · Rosalind Elsie Franklin (25 July 1920 – 16 April 1958) [1] was a British chemist and X-ray crystallographer whose work was central to the understanding of the molecular structures of DNA (deoxyribonucleic acid), RNA (ribonucleic acid), viruses, coal, and graphite. [2] Although her works on coal and viruses were appreciated in her lifetime ...
