For all known astronomers.
“Nicolaus Copernicus (b. 19 February, 1473—24 May, 1543) was a Polish polymath who lived during...Copernicus
“Sir Isaac Newton was an English physicist, famous for his three laws of motion. The works of...Isaac Newton
“Carl Edward Sagan (9 November, 1934–20 December, 1996) was an American Muggle astronomer...Carl Sagan