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.


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Theodore Von Krmn

Von Kármán, Theodore (1881-1963) was a Hungarian-born American physicist and engineer who made great contributions to the field of aerodynamics and rocket technology.

Brahe, Tycho

Brahe, Tycho (15461601), a Danish astronomer. Tycho achieved fame by writing a book on the brilliant new star that appeared in 1572.

Leverrier, Urbain Jean Joseph

Leverrier, Urbain Jean Joseph (1811-1877), a French astronomer. Leverrier and John Couch Adams independently deduced the existence of the planet Neptune by mathematical calculations.

Slipher, Vesto Melvin

Slipher, Vesto Melvin (1875-1969), a United States astronomer. He made perhaps more basic contributions in various fields of astronomy than any of his contemporaries, Slipher is best known for his fundamental spectroscopic discoveries, especially of the rotations and atmospheres of planets.

Sitter, Willem de

Sitter, Willem de (18721934), a Dutch astronomer. He was a pioneer in applying Albert Einstein's theory of relativity to astronomy and developed a model of an expanding, curved universe.

William Wallace Campbell

Campbell, William Wallace (1862-1938), an American astronomer, made important measurements of the motion of stars.