California
Asaph Hall
Percival Lowell
Scientists by country
Clyde Tombaugh
Carl Sagan
Saint John
Daniel Kirkwood
Samuel Pierpont Langley
Benjamin Apthorp Gould
Eugene Merle Shoemaker
Grote Reber | Edwin Hubble
Griffith Observatory
Arno Penzias
Astronomy by country
Sarah Williams
Neil deGrasse Tyson
Scientists from the United States
John Martin Schaeberle
Matthew Fontaine Maury
Simon Newcomb
George Gamow
Astronomy in the United States | Lewis Morris Rutherfurd
John Allen Eddy
Astronomers by country
Maria Mitchell
Henry Draper
Karl Guthe Jansky
John C. Mather |
