births
Jan Oort, Dutch astronomer and academic (died 1992)
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Jan Oort
Dutch astronomer (1900–1992)
Jan Hendrik Oort was a Dutch astronomer who made significant contributions to the understanding of the Milky Way and who was a pioneer in the field of radio astronomy. The New York Times called him "one of the century's foremost explorers of the universe"; the European Space…Source: Wikipedia (CC BY-SA)
April 28
Day of the year
April 28 is the 118th day of the year in the Gregorian calendar; 247 days remain until the end of the year.Source: Wikipedia (CC BY-SA)