Astronomers have contributed greatly to our understanding of physics and motion. In this section you can learn all about famous astronomers and what each of them has contributed to our understanding of space.

Nostradamus, the Latin name of Michel de Notredame (1503-1566), a French astrologer and physician.

Cassini, Giovanni Domenico (Jean Dominique) (1625-1712), an Italian astronomer. As a skilled observer using the most accurate telescopes available at the time, Cassini made many important discoveries about the planets of the solar system.

Flammarion, (Nicolas) Camille (1842-1925), a French astronomer. He was the author of many popular books on astronomy, including The Atmosphere (1871), Popular Astronomy (1879), and Astronomy for Amateurs (1904).

Clark, Alvan (18041887), a United States maker of astronomical lenses. Five times his firm, Alvan Clark & Sons, made the then-largest telescope lens in the world.

Cannon, Annie Jump (18631941), a United States astronomer. She had a long, distinguished career at Harvard Observatory, 18961940, and was one of the foremost women scientists of her time.

Hewish, Antony (1924-) is a British astronomer and astrophysicist, a scientist who studies the physical nature, origin, and development of the solar system, galaxies, and the universe.

Eddington, Sir Arthur Stanley (1882--1944), a British astronomer. As chief assistant at the Royal Greenwich Observatory, 1906--13, he began his studies of the motion, internal structure, and evolution of stars.

Hall, Asaph (18291907), a United States astronomer. In 1877 Hall discovered the two satellites of Mars, naming them Deimos and Phobos.

Lovell, Sir (Alfred Charles) Bernard (1913-), an English astronomer. In 1946 Lovell demonstrated the validity of using the techniques of radio astronomy to study meteors.

Shoemaker, Carolyn (1929-) is an American astronomer. She has discovered more comets than any other living astronomer.

Payne-Gaposchkin, Cecilia Helena (1900-1979) was a British-born astronomer who became an authority on variable stars (stars that change in brightness) and the structure of the Milky Way Galaxy.

Young, Charles Augustus (18341908), a United States astronomer noted for his spectroscopic studies of the sun.

Abbot, Charles Greeley (1872-1973), a United States astrophysicist and authority on solar radiation.

Mason, Charles (1730-1787), an English astronomer and surveyor. In addition to surveying the boundary between Maryland and Pennsylvania, Jeremiah Dixon and he fixed the precise measure of a degree of latitude in America.

Messier, Charles (1730-1817), a French astronomer, discovered or independently codiscovered some 20 comets, earning him the nickname the “ferret of comets” by King Louis XV.

Tombaugh, Clyde William (1906-1997) was an American astronomer who discovered the dwarf planet Pluto.

Levy, David H. (1948) is an amateur astronomer who helped discover the Shoemaker-Levy 9 comet.

Rittenhouse, David (1732-1796), a United States astronomer and mathematician. Next to Benjamin Franklin, he was the most respected American man of science of his time.

Rosse, William Parsons, Third Earl of (1800-1867), a British astronomer and engineer.

Halley, Edmund (1656?1743), an English astronomer and scientist. He is best known for his studies of thehcomet that bears his name.

Barnard, Edward Emerson (1857-1923), a United States astronomer. He discovered 16 comets, Jupiter's fifth satellite, and many dark nebulae.

Hubble, Edwin P. (Powell) (18891953), a United States astronomer. Hubble revolationized astronomy by showing that the universe is much larger than had been previously believed and by providing observational evidence for the theory of an expanding universe.

Eudoxus of Cnidus (NY duhs or kuh NY duhs) (400 B.C.?-350 B.C.?) was a Greek astronomer who made important contributions to the field of geometry.

Pease, Francis Gladheim (18811938), a United States astronomer and optician. Pease made photographic and spectrographic studies of the moon, the planets, star clusters, and nebulae.

Smith, Francis Graham (1923-) is a British astronomer and one of the leading authorities on radio astronomy, the branch of astronomy that studies celestial bodies by measurement and analysis of the electromagnetic radiation they emit in the wavelength range from 1 mm to 30 mm.