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2019: Chinese probe Chang'e 4 becomes the first human-made object to land on the far side of the Moon. [83] 2019: NASA concludes the 15-year Opportunity rover mission after being unable to wake the rover from hibernation. [84] 2019: The first image of the supermassive black hole inside galaxy Messier 87 was captured by the Event Horizon ...
Some lists of common words distinguish between word forms, while others rank all forms of a word as a single lexeme (the form of the word as it would appear in a dictionary). For example, the lexeme be (as in to be ) comprises all its conjugations ( is , was , am , are , were , etc.), and contractions of those conjugations. [ 5 ]
15 January 2010: Marshall Warren Nirenberg, a Nobel Prize-winning American biochemist, dies aged 82. 3 January John Keith Irwin (b. 1929), sociologist, specialist in the American prison system. Francis Gillingham (b. 1916), neurosurgeon, stereotactic surgery pioneer. 10 January – Donald Acheson (b. 1926), epidemiologist, former UK Chief ...
10 January – Astronomers propose that AT2018cow, a very powerful astronomical explosion, 10–100 times brighter than a normal supernova, may have been a white dwarf being pulled apart by a black hole; or, a supernova leaving behind a black hole or a neutron star, the creation of a compact body being observed for the first time. [19] [20] [21]
The Words of the Year usually reflect events that happened during the years the lists were published. For example, the Word of the Year for 2005, 'integrity', showed that the general public had an immense interest in defining this word amid ethics scandals in the United States government, corporations, and sports. [1]
In 2010, Dictionary.com announced its first word of the year, 'change', and has done so in December every year since. [38] The selection is based on search trends on the site throughout the year and the news events that drive them. [39] The following is the list of annual words since beginning with the first in 2010: [38]
2019 in science (9 C, ... This list may not reflect recent changes. 2010s in science and technology; 0–9. 2010 in science; 2010s in psychology; 2011 in science;
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