Albert Einstein
Albert Einstein (1879-1955) 1
Stephen Hawking
Stephen Hawking, 74 2
Benjamin Franklin
Benjamin Franklin (1706-1790) 3
Sir Isaac Newton
Sir Isaac Newton (1643-1727) 4
Charles Darwin
Charles Darwin (1809-1882) 5
George Washington Carver
George Washington Carver (1864-1943) 6
Galileo Galilei
Galileo Galilei (1564-1642) 7
Jane Goodall
Jane Goodall, 81 8
Madame Curie
Madame Curie (1867-1934) 9
Neil deGrasse Tyson
Neil deGrasse Tyson, 57 10
Abdul Kalam
Abdul Kalam (1931-2015) 11
Carl Sagan
Carl Sagan (1934-1996) 12
Sigmund Freud
Sigmund Freud (1856-1939) 13
Martin Heinrich Klaproth
Martin Heinrich Klaproth (1743-1817) 14
Louis Pasteur
Louis Pasteur (1822-1895) 15
Spencer Silver
Spencer Silver, 75 16
Garrett Morgan
Garrett Morgan (1877-1963) 17
Alfred Wegener
Alfred Wegener (1880-1930) 18
Bob Pflugfelder
Bob Pflugfelder, 47 19
Samuel Morse
Samuel Morse (1791-1872) 20
Howard Carter
Howard Carter (1874-1939) 21
Joseph Hooton Taylor Jr.
Joseph Hooton Taylor Jr., 74 22
August Kekule
August Kekule (1820-1896) 23
Rachel Carson
Rachel Carson (1907-1964) 24
Tim Berners Lee
Tim Berners Lee, 60 25
Nicolaus Copernicus
Nicolaus Copernicus (1473-1543) 26
Alfred Nobel
Alfred Nobel (1833-1896) 27
Brian Cox
Brian Cox, 47 28
Michio Kaku
Michio Kaku, 69 29
Gregor Mendel
Gregor Mendel (1822-1884) 30
Alexander Fleming
Alexander Fleming (1881-1955) 31
Jonas Salk
Jonas Salk (1914-1995) 32
Temple Grandin
Temple Grandin, 68 33
Dmitri Mendeleev
Dmitri Mendeleev (1834-1907) 34
Niels Hansen
Niels Hansen (1866-1950) 35
John Muir
John Muir (1838-1914) 36
Michael Faraday
Michael Faraday (1791-1867) 37
Benjamin Banneker
Benjamin Banneker (1731-1806) 38
Jacques Cousteau
Jacques Cousteau (1910-1997) 39
Cyrus McCormick
Cyrus McCormick (1809-1884) 40
Niels Bohr
Niels Bohr (1885-1962) 41
Erno Rubik
Erno Rubik, 71 42
Max Planck
Max Planck (1858-1947) 43
Daniel Hale Williams
Daniel Hale Williams (1856-1931) 44
Dr Charles Drew
Dr Charles Drew (1904-1950) 45
Charles Babbage
Charles Babbage (1791-1871) 46
Robert Fulton
Robert Fulton (1765-1815) 47
Johannes Kepler
Johannes Kepler (1571-1630) 48

Ranked by popularity based on boosts and other user activity.