By John Loci
Today in Astronomy History
August 21, 1560
Tycho Brahe becomes interested in astronomy.
August 21, 1665
French-Italian astronomer and mathematician, Giacomo Filippo Maraldi, is born. Giacomo Maraldi figured out that the corona seen during a solar eclipse belonged to the Sun and not the Moon.
August 21, 1972
US orbiting astronomy observatory Copernicus is launched.
August 21, 1995
American astrophysicist, Subrahmanyan Chandrasekhar, dies. Subrahmanyan Chandrasekhar with William A.Fowler won the 1983 Nobel Prize for Physics for formulating the theory on the later evolutionary stages of massive stars.