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
Jane Goodall
Jane Goodall, 82 6
Galileo Galilei
Galileo Galilei (1564-1642) 7
George Washington Carver
George Washington Carver (1864-1943) 8
Madame Curie
Madame Curie (1867-1934) 9
Neil deGrasse Tyson
Neil deGrasse Tyson, 57 10
Abdul Kalam
Abdul Kalam (1931-2015) 11
Joseph Hooton Taylor Jr.
Joseph Hooton Taylor Jr., 75 12
Sigmund Freud
Sigmund Freud (1856-1939) 13
Carl Sagan
Carl Sagan (1934-1996) 14
Louis Pasteur
Louis Pasteur (1822-1895) 15
Rachel Carson
Rachel Carson (1907-1964) 16
Martin Heinrich Klaproth
Martin Heinrich Klaproth (1743-1817) 17
Samuel Morse
Samuel Morse (1791-1872) 18
August Kekule
August Kekule (1820-1896) 19
Spencer Silver
Spencer Silver, 75 20
Nicolaus Copernicus
Nicolaus Copernicus (1473-1543) 21
Garrett Morgan
Garrett Morgan (1877-1963) 22
Howard Carter
Howard Carter (1874-1939) 23
Niels Hansen
Niels Hansen (1866-1950) 24
Alfred Wegener
Alfred Wegener (1880-1930) 25
Jonas Salk
Jonas Salk (1914-1995) 26
Brian Cox
Brian Cox, 48 27
Tim Berners Lee
Tim Berners Lee, 61 28
Alfred Nobel
Alfred Nobel (1833-1896) 29
Alexander Fleming
Alexander Fleming (1881-1955) 30
Temple Grandin
Temple Grandin, 68 31
John Muir
John Muir (1838-1914) 32
Michio Kaku
Michio Kaku, 69 33
Gregor Mendel
Gregor Mendel (1822-1884) 34
Erno Rubik
Erno Rubik, 71 35
Jacques Cousteau
Jacques Cousteau (1910-1997) 36
Bob Pflugfelder
Bob Pflugfelder, 48 37
Michael Faraday
Michael Faraday (1791-1867) 38
Dmitri Mendeleev
Dmitri Mendeleev (1834-1907) 39
Benjamin Banneker
Benjamin Banneker (1731-1806) 40
Niels Bohr
Niels Bohr (1885-1962) 41
BF Skinner
BF Skinner (1904-1990) 42
David Suzuki
David Suzuki, 80 43
Charles Babbage
Charles Babbage (1791-1871) 44
Dr Charles Drew
Dr Charles Drew (1904-1950) 45
Cyrus McCormick
Cyrus McCormick (1809-1884) 46
Robert Fulton
Robert Fulton (1765-1815) 47
Philo Farnsworth
Philo Farnsworth (1906-1971) 48

Ranked by popularity based on boosts and other user activity.