2 Rosalind Franklin(Chemist)
4 Rachel Carson(Marine biologist)
Rachel Carson was a conservationist, marine biologist, and author. She is credited with authoring an influential book titled Silent Spring, which played a significant role in advancing the global environmental movement. Carson is also remembered for her book, The Sea Around Us, which earned her a U.S. National Book Award. She was posthumously honored with the Presidential Medal of Freedom.
5 Grace Hopper(Computer Scientist)
6 Emmy Noether(Mathematician)
Emmy Noether was a German mathematician best remembered for her contributions to abstract algebra. She is credited with discovering Noether's theorem, which is regarded as a fundamental theorem in mathematical physics. One of the most important mathematicians of her generation and the most important woman in mathematics history, Emmy Noether developed theories of algebras, fields, and rings.
7 Ada Lovelace(Countess of Lovelace)
Ada Lovelace was a mathematician known for her work on the Analytical Engine, a mechanical general-purpose computer proposed by Charles Babbage. Many believe that Lovelace was the first to recognize the potential of computers. It is also believed that she published the first algorithm after realizing that the algorithm could be carried out by a machine like the Analytical Engine.
8 Caroline Herschel(Astronomer)
Caroline Herschel was a German astronomer who is credited with the discovery of many comets, such as 35P/Herschel-Rigollet, which is named in her honor. In 1828, Herschel became the first woman to be honored with a Gold Medal of the Royal Astronomical Society. She was also the first female scientist to receive a salary.
9 Lynn Margulis(Author)
Lynn Margulis was an evolutionary theorist, biologist, educator, and science author. She was a modern proponent of the significance of symbiosis in evolution. Along with British chemist James Lovelock, Margulis was the co-developer of the Gaia hypothesis. She was a strong critic of neo-Darwinism. In 2001, she was honored with the Golden Plate Award of the American Academy of Achievement.
10 Vera Rubin(Astronomer)
American astronomer Vera Rubin is best known for her pioneering discoveries on galaxy rotation rates, her groundbreaking work confirming the existence of dark matter and for her life-long advocacy for women in science. She studied the galactic rotation curves and provided strong evidence of the existence of dark matter. The Vera C. Rubin Observatory in Chile is named after her.
11 Cecilia Payne-Gaposchkin(Astronomer, Astrophysicist)
After losing her father at 4, Cecilia Payne-Gaposchkin was raised singlehandedly by her mother. The incredibly talented Cecilia studied at Cambridge but failed to secure a degree because of her gender. She later joined Harvard and opposing prevalent beliefs, proposed that stars were mainly made of hydrogen and helium.
12 Katherine Johnson(Mathematician)
13 Dorothy Hodgkin(Biochemist)
Dorothy Hodgkin received the 1964 Nobel Prize for mapping the structure of penicillin and Vitamin B12. She is also known for her work on insulin. Beginning her work on structure of an organic compound by using X-ray crystallography as an undergraduate student, she later developed it further and used it to determine the three-dimensional structure of complex organic molecules.
14 Jane Goodall(Primatologist)
Jane Goodall is an English anthropologist and primatologist. Goodall's research proved that chimpanzees could use tools like stalks of grass to fish out termites from termite holes; this also challenged the long-held belief that chimpanzees were vegetarians. Goodall also discovered that chimpanzees are capable of emotions like sorrow and joy. Goodall is also credited with founding the Jane Goodall Institute.
15 Terri Irwin(Naturalist Who is The Owner of Australia Zoo in 'Beerwah, Queensland')
American–Australian naturalist Terri Irwin is best known as the co-host of The Crocodile Hunter, along with her husband, the late animal expert Steve Irwin. She has also been part of shows such as Croc Files and Crikey! It's the Irwins, and helped in the development of Australia Zoo.
16 Dian Fossey(Zoologist, Conservationist)
17 Mileva Marić(Physicist, Mathematician)
18 Juliane Koepcke(Lone Survivor of 1971 LANSA Plane Crash)
19 Mary Jackson(Mathematician)
American mathematician and aerospace engineer Mary Jackson went down in history as the first African-American woman to work as a NASA engineer. Initially a math teacher, she later joined NACA under Dorothy Vaughan and contributed to countless American space programs at a time when racial segregation was the norm.
20 Temple Grandin(Scientist)
Temple Grandin is an American activist and scientist. An outspoken proponent of the neurodiversity and autism rights movements, Grandin is one of the first individuals to document the insights gained from her own experience of autism. She has also authored over 60 scientific papers on animal behavior. Her life and work inspired the 2010 biographical drama film Temple Grandin.
21 Dorothy Vaughan(Mathematician)
American mathematician Dorothy Vaughan was also known as a "human computer." Initially a math teacher, she became the first African-American supervisor of NACA, later part of NASA, at a time when racial segregation was rampant in the U.S. Her contribution to the early American space programs is invaluable.
22 Shakuntala Devi(Human Computer)
A child prodigy who was never formally educated, Shakuntala Devi became a mathematical genius earning the title of Human Computer for her exceptional calculating abilities. The Indian genius was also an astrologer and a gifted writer who authored books on maths, astrology, homosexuality in India and a crime thriller novel.
23 Maryam Mirzakhani(First Iranian to Be Honored With the ‘Fields Medal’, the Most Prestigious Award in Mathematics)
Maryam Mirzakhani was an Iranian mathematician best remembered for her innovative methods and research involving different branches of mathematics like symplectic geometry and ergodic theory. On 13 August 2014, she became the first Iranian and only woman to date to be honored with the prestigious Fields Medal. Maryam Mirzakhani died of breast cancer when she was 40 years old.
24 Stephanie Kwolek(Chemist)
Stephanie Kwolek was an American chemist remembered for her invention of Kevlar. She worked at the DuPont Company for over four decades and was awarded the company's Lavoisier Medal for her discovery. In 1995, she was inducted into the National Inventors Hall of Fame, becoming the fourth woman to be inducted. She also won other awards including the Perkin Medal.
25 Irène Joliot-Curie(Chemist)
Marie Curie and Pierre Curie’s daughter, Irène Joliot-Curie, herself a brilliant scientist, won the 1935 Nobel Prize in Chemistry, along with her husband, Joliot-Curie, for discovering artificial radioactivity. She was also one of the first three female French government members. She tragically died of leukemia caused by exposure to radiation.
26 Annie Jump Cannon(Astronomer)
After studying physics and astronomy at Wellesley College, Annie Jump Cannon traveled across Europe and focused on photography for a decade, before venturing to study astronomy again. At the Harvard Observatory, she made a considerable contribution to the classification of stellar bodies. She was almost deaf due to scarlet fever.
27 Jennifer Doudna(Biochemist)
American biochemist Jennifer Doudna of the University of California, Berkeley, who has made fundamental contributions in biochemistry and genetics, is best-known for her pioneering work in CRISPR gene-editing. Doudna and Emmanuelle Charpentier received the 2020 Nobel Prize in Chemistry for developing a method for genome editing through CRISPR, marking them as the only two women to share science Nobel ever.
28 Margaret Hamilton(Computer Scientist)
Credited with coining the term software engineering, computer scientist and systems engineer, Margaret Heafield Hamilton served as the Director of the Software Engineering Division of the MIT Instrumentation Laboratory, overseeing the development of the on-board flight software for NASA's Apollo program. A prolific writer, she is also the founder of two software companies; Higher Order Software and Hamilton Technologies.
29 Kiran Mazumdar-Shaw(Business woman)
Biocon founder and chairperson Kiran Mazumdar-Shaw is a self-made billionaire entrepreneur who made it to Forbes’s Power Women 2020 list. Though she initially wished to be a brewer like her father, she later drifted to the biochemical industry. Apart from revolutionizing the Indian biopharma market, she also heads a charitable organization.
30 Lise Meitner(Physicist)
Lise Meitner was an Austrian-Swedish physicist best remembered for her contributions that led to the discoveries of nuclear fission and the element protactinium. Nicknamed the German Marie Curie by Albert Einstein, Lise Meitner became the second woman in the world to receive a doctorate in physics in 1905. In 1997, chemical element 109 meitnerium was named in her honor.
31 Retta(Stand-up Comedian)
32 Julie Payette(Governor General of Canada)
33 Sally Ride(First American Woman To Go in Space, Physicist)
34 Tu Youyou(chemist, pharmacologist, inventor, university teacher)
Chinese phytochemist and malariologist Tu Youyou is best remembered for her Nobel Prize-winning discovery of the anti-malarial drug qinghaosu, or artemisinin. She is the first Chinese female Nobel laureate. A tuberculosis infection in her younger days had inspired her to step into medicine. She later studied traditional Chinese medicine, too.
35 Peggy Whitson(Astronaut, Biochemist)
The first woman to command the International Space Station, NASA astronaut Peggy Whitson was born to farmers and decided to become an astronaut after watching the moon landing on TV. She also boasts of a PhD in biochemistry and has been a researcher and educator of biochemistry and genetic engineering.
36 Christina Ochoa(Actress, Science communicator)
Christina Ochoa is a Spanish actress best known for her portrayal of Grace D'Argento in the American science fiction series, Blood Drive. Ochoa is credited with founding QE Productions, which produced the critically acclaimed short film, Stay with Me. Also a science communicator, Christina Ochoa has been the host of many scientific shows and conferences.
37 Alicia Nash(Physicist)
Born in El Salvador, Alicia Nash later moved to the U.S., where she became one of the first women to join MIT as a student. The physicist met her husband, renowned mathematician John Nash at MIT. Both Alicia and John were killed in car crash while returning home from Norway.
38 Nettie Stevens(Geneticist)
Nettie Stevens was an American geneticist. She is credited with discovering sex chromosomes which later came to be known as the X and Y chromosomes. In 1994, Nettie Stevens was inducted into the National Women's Hall of Fame.
39 Sylvia Earle(Marine biologist)
40 Émilie du Châtelet(Philosopher)
41 Frances Oldham Kelsey(Pharmacologist)
As part of the FDA, Frances Oldham Kelsey prevented thalidomide from being allowed in the US drug market as a painkiller, as she was unsure of its impact. Her concerns were proved right when the drug caused birth defects in European children. She was subsequently awarded by the US president.
42 Donna Strickland(Optical physicist)
Donna Strickland is a Canadian optical physicist who is considered a pioneer in the field of pulsed lasers. In recognition of her research on the practical implementation of chirped pulse amplification, she was jointly awarded the Nobel Prize in Physics in 2018, together with Gérard Mourou. She is currently a professor at the University of Waterloo in Ontario, Canada.
43 Rita Levi-Montalcini(Neurologist)
Rita Levi-Montalcini was an Italian neurologist whose discovery of nerve growth factor earned her the 1986 Nobel Prize in Physiology or Medicine. Throughout her life, Levi-Montalcini's work in neurobiology earned her several other honors and awards, including the Golden Plate Award from the American Academy of Achievement and the European Academy of Sciences' Leonardo da Vinci Award.
44 Ginni Rometty(Businesswomen)
Former IBM CEO Ginni Rometty was named to the World's Top 50 Women in Tech by Forbes in 2018. She led IBM through its conversion to a leading data company. The Northwestern University alumna has also earned the Edison Achievement Award. She became part of Time 100 in 2012.
45 Emmanuelle Charpentier(Researcher)
46 Sophie Germain(Mathematician)
French mathematician Sophie Germain had used the pseudonym M. Le Blanc to get hold of notes from the École Polytechnique, as being a woman, she was not allowed to attend the institute. She later contributed to the number theory and also pioneered the elasticity theory. She died of breast cancer.
47 Nell Newman(Actress)
Nell Newman is a biologist, environmentalist, and former child actress. An ardent supporter of sustainable agriculture, Newman is credited with founding a pet food and organic food production company called Newman's Own. For her environmental leadership, Newman was honored with the Rachel Carson Award in 2014. In 2017, she was made an inductee of the Specialty Food Hall of Fame.
48 Marie Stopes(Paleobotanist & Women’s Rights Activists)
Apart from being a successful botanist, Marie Stopes was also a popular activist, known for her contribution to the feminist cause. A leading supporter of birth control, she established the UK’s first clinic for family planning. She was also known for her books Married Love and Wise Parenthood.
49 Kathleen Rubins(Astronaut, Biologist)
Kathleen Rubins is a microbiologist and NASA astronaut. In 2016, she became the 60th woman to fly in space when she launched on a Russian Soyuz spacecraft. She traveled to the International Space Station and returned to Earth after a few months. She has spent a total of 300 days, 1 hour, and 31 minutes in space.
50 Jocelyn Bell Burnell(Astrophysicist who discovered the first radio pulsars and was President of the Royal Astronomical Society from 2002 until 2004)
Jocelyn Bell Burnell is an astrophysicist from Northern Ireland. As a postgraduate student, she discovered the first radio pulsars. She graduated from the University of Glasgow and pursued an academic career. In 2018, she received the Special Breakthrough Prize in Fundamental Physics for her discovery of radio pulsars. She donated the three million dollars she received as prize money.