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December 16 – The Beethoven Burst (GRB 991216) is one of the most powerful detected Gamma-ray bursts. NASA loses two Mars probes, the Mars Climate Orbiter and the Mars Polar Lander. The Subaru 8.3 m and Gemini North 8.1 m reflecting telescopes open at the Mauna Kea Observatory in Hawaii. The Cetus Dwarf galaxy is discovered.
First space walk/extra-vehicular activity (Alexei Leonov). USSR Voskhod 2: March 1965: First crewed spacecraft to change orbit. USA (NASA) Gemini 3: 14 July 1965: First flyby of Mars (returned pictures). USA (NASA) Mariner 4 [17] 14 July 1965: First photographs of another planet from deep space . USA (NASA) Mariner 4 [17] 15 December 1965
List of space telescopes; New Frontiers program; Out of the Cradle – 1984 book about scientific speculation on future missions. Space Race; Timeline of artificial satellites and space probes; Timeline of discovery of Solar System planets and their moons; Timeline of first orbital launches by country; Timeline of space exploration
The Hubble Space Telescope (HST) is a space telescope that was carried into orbit by a Space Shuttle in April 1990. It is named after American astronomer Edwin Hubble . Although not the first space telescope, Hubble is one of the largest and most versatile, and is well known as both a vital research tool and a public relations boon for astronomy .
The month of February brought some unbelievably exciting discoveries in the study of space, and with it even more out of this world images. Most notably, scientists detected a "chirp" from ...
The principal change was to space leap years differently so as to make the average calendar year 365.2425 days long, more closely approximating the 365.2422-day 'tropical' or 'solar' year that is determined by the Earth's revolution around the Sun. The reform advanced the date by 10 days: Thursday 4 October 1582 was followed by Friday 15 ...
9 May: A cubic millimetre of the human brain is mapped at nanoscale resolution by a team at Google 30 May: NASA reports the discovery of the most distant known galaxy. 9 May. A record annual increase in atmospheric CO 2 is reported from the Mauna Loa Observatory in Hawaii, with a jump of 4.7 parts per million (ppm) compared to a year earlier. [285]
Such discoveries are often a multi-step, multi-person process. Multiple discovery sometimes occurs when multiple research groups discover the same phenomenon at about the same time, and scientific priority is often disputed. The listings below include some of the most significant people and ideas by date of publication or experiment.