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First clear telescopic photograph of another world: the Moon. United States: John William Draper: 1845 First proper observation of other galaxies which are termed "whirlpool nebulae". UK: William Parsons: 1861 A Journey Through Space makes first proposal of using rockets for space flight. UK William Leitch: 1895 First proposal of space elevator ...
The fountain called 'Bit.Fall' by German artist Julius Popp (2005) uses digital technologies to spell out words with water. The fountain is run by a statistical program which selects words at random from news stories on the Internet. It then recodes these words into pictures. Then 320 nozzles inject the water into electromagnetic valves.
In 1865, Secchi began classifying stars into spectral types. [96] The first evidence of helium was observed on August 18, 1868, as a bright yellow spectral line with a wavelength of 587.49 nanometers in the spectrum of the chromosphere of the Sun. The line was detected by French astronomer Jules Janssen during a total solar eclipse in Guntur ...
A space fountain is a proposed form of an extremely tall tower extending into space. As known materials cannot support a static tower with this height, a space fountain has to be an active structure : A stream of pellets is accelerated upwards from a ground station.
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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As part of NASA's Mercury-Redstone 2 mission, the chimpanzee Ham becomes the first Hominidae in space. Yuri Gagarin becomes the first person to orbit Earth in April. NASA astronaut Alan Shepard becomes the first American in space a month later, but does not go into orbit. [24]
Mission name Launch date Description Ref(s) Pioneer 5: 11 March 1960 Interplanetary space investigations [15] [16] Venera 1: 12 February 1961 First probe to another planet; Venus flyby (contact lost before flyby) [17] [18] [19] Vostok 1: 12 April 1961 First crewed Earth orbiter (Yuri Gagarin) [20] [21] Ranger 1: 23 August 1961