Dirk Brouwer, Dutch-American astronomer
Hubert Newton, US astronomer
Lewis Boss, US astronomer
Benjamin Gould, US astronomer
Camille Flammarion, French astronomer
Lafayette Mendel, US biochemist
Adolph Knopf, US geologist
Bertram Boltwood, US radiochemist
Otto Struve, Russian-US astronomer
William Wallace Campbell, US astronomer
Hugo von Seeliger, German astronomer
Ross Harrison, US biologist
Oskar Baudisch, Austrian-US chemist
Richard Proctor, British astronomer
Martin Harwit, Czech-American astronomer
William Eichelberger, US astronomer
View of Jill Tarter, American astronomer, at work
Benjamin Silliman, US chemist
Robert Yerkes, US psychologist
Edwin Conklin, US zoologist
Harlow Shapley, American astronomer
George Biddell Airy, English astronomer
Nicholas Kratzer, German astronomer
Seth Chandler, US astronomer
Winslow Upton, US astronomer
James Keeler, US astronomer
Charles Young, US astronomer
Henry Parkhurst, US astronomer
Urbain Le Verrier, French astronomer
James Bradley, English astronomer
Daniel Gambis, French astronomer
Walter Sydney Adams, American astronomer
James Bradley (1693-1762), English Astronomer and Priest, Served as Astronomer Royal, Engraving by E. Scriven
Lucile and William Mann, US zoologist
Variation in apparent lunar diameter
Sun and Moon at vernal equinox
Ancient Chinese astronomer.
Maria Mitchell, US astronomer
Thomas Wright, British astronomer
Carolina Amor de Fournier, Mexican writer
Daniel Kirkwood, US astronomer
Maurice Loewy, French astronomer
Thomas Simonton, US astronomer
Clyde Tombaugh, US astronomer
Frederick Brodie, British astronomer
James Cattell, US psychologist
Sebastian von Hoerner, German radio astronomer
John Brashear, American astronomer
Ambrose Swasey, American astronomer
Astronomer
Herbert Friedman, American physicist
Christiaan Huyghens, Dutch astronomer
1905 Edwin Ray Lankester Zoologist
Jesse Ramsden, English instrument maker
Tycho Brahe's Astronomical Instruments title page
1874 Transit of Venus observers
Nicolaus Copernicus, Polish astronomer
Asaph Hall III, US astronomer
William Herschel, English astronomer
Winthrop Osterhout, US botanist
Woman walking, Muybridge motion study, 1880s
Sears Cook Walker, American astronomer
Astronomer using a telescope
Bernard Carr, British astronomer
Edgar Frisby, US astronomer
John Herschel, British astronomer
Edmond Halley, English astronomer
Galileo Galilei, Italian astronomer
Islamic astronomer using a quadrant
Doppler spectroscopy, 1974
Hevelius's book on comets, 1668
Title page of Galileo's 'Sidereus Nuncius', 1610
Moon, 1870
Frank Drake, US astrophysicist
Tatel radio telescope and US astrophysicist Frank Drake
Title page of Dialogue on the Two Chief World Systems, 1632
William and Caroline Herschel Sculpture
Lunar crater model, 1850s
Muybridge motion study track, 1870s
John Dee, English astrologer
25-inch Newall refractor telescope, 1873
William Coblentz, US physicist
Alfred Hershey, US geneticist
Elizabeth Roemer, US astronomer
Journal des scavans, 1684 reprint
William Gregory, Scottish chemist
Carl Neuberg, German-US biochemist
Alexander Scherer, German chemist
Annie Jump Cannon, US astronomer
Muriel Mussells Seyfert, US astronomer
James Nasmyth, Scottish engineer
John Campbell(1653-1728), Scottish-American Editor and Founder of First Successfully Established Paper in America, Boston News-Letter, Engraving
Amateur Astronomer
Edward Knobel, British astronomer
Camille Flammarion, US astronomer
Robert Stawell Ball, Irish astronomer
David Rittenhouse, American astronomer
US radio astronomer Grote Reber and first radio telescope
Lewis Morris Rutherford, astronomer
Neville Maskelyne astronomer longitude
Johannes Kepler, astronomer
Henry Andrews, English astronomer
Nicolas Copernicus, Polish astronomer
Aryabhata mathematician and astronomer
Milky Way and astronomer
Mark Bailey, British astronomer
Katherine Blundell, British astronomer
Alexander Boksenberg, British astronomer
John Brown, British astronomer
Margaret Penston, British astronomer
Arnold Wolfendale, British astronomer
Vesto Melvin Slipher, American astronomer
Geoffrey Marcy, US astronomer
An astronomer (Ptolemy of Alexandria?)
Karl Ludwig Hencke, German astronomer
Urbain Jean Joseph Leverrier, astronomer
Jean Sylvain Bailly, French astronomer
John Couch Adams, British astronomer
Gerard Gilmore, NZ-British astronomer
Francis Graham-Smith, British astronomer
Donald Lynden-Bell, British astronomer
M. Rowan-Robinson, British astronomer
Astronomer under a starry sky
Astronomer observing the night sky
Johannes Borgesius, Dutch mathematician
Martin Rees, British astrophysicist
Woman lying down, Muybridge motion study, 1880s
Benjamin Franklin, American scientist
Tatel radio telescope control room, 1960s
George K. Burgess, US physicist
Victor Heiser, American physician
Leviathan of Birr, Ireland, 19th century
USNO solar eclipse expedition, 1925
German astronomical observatory, artwork
Meridian circle instrument, 1880s
Mills Observatory, Dundee
Lord Lindsay's eclipse expedition, 1870
Olinthus Gregory, English mathematician
Horse and rider galloping, Muybridge motion study, 1880s
Francesco Bianchini, Italian astronomer
Chien-Shiung Wu, Chinese-US physicist
Edmund Wilson, US cell biologist
Boys playing leap frog, Muybridge motion study, 1880s
Hugo Lieber, US hearing aid pioneer
NASA scientists with a model of a Pegasus satellite, 1964
Lloyd Berkner, founding acting director of NRAO
Dominique Francois Jean Arago, astronomer
Pauline Gracia Beery Mack, US chemist
Carey Foster, British physicist
University of Chicago physicists, 1908
Observatory, Harvard College, Cambridge, Massachusetts, USA, Detroit Publishing Company, 1900
Denison Olmsted, American physicist
Edward Charles Pickering.
Carl Friedrich Wilhelm Peters.
Title page of his Quadrans Apiani, 1532
David Levy
Observatory of Strasbourg
Copernicus crater on the Moon
Smithsonian Astrophysical Observatory staffers working
Edward Laurens Mark, US zoologist
US geneticists at a conference, 1941
Arthur Cayley, British mathematician
Percival Lowell, US astronomer
Margaret Harwood, US astronomer
Fritz Zwicky, Swiss astronomer
Hipparchus, Ancient Greek astronomer
English astronomer Professor Ian Robson
Charles Piazzi Smith, British astronomer
Lovell radio telescope
Amateur astronomers
Benjamin Montesinos, astrophysicist
Janssen at Meudon Observatory, 1893
Brian May, Starmus Festival 2011
Markree Observatory telescope
Gill in Cape Observatory study
30-inch telescope, Helwan, Egypt