Occupation: Astronomer
Carl Sagan was an American astronomer, cosmologist, astrophysicist, astrobiologist, author, and science communicator. He is best known for his scientific contributions to the study of extraterrestrial life.
Occupation: Physicist and Chemist
Marie Curie was a Polish-born physicist and chemist who conducted pioneering research on radioactivity. She was the first woman to win a Nobel Prize, and remains the only person to have won Nobel Prizes in two different scientific fields.
Occupation: Politician and Human Rights Activist
Nelson Mandela was a South African anti-apartheid revolutionary, political leader, and philanthropist who served as President of South Africa from 1994 to 1999. He was the country's first black head of state and the first elected in a fully representative democratic election.
Occupation: Activist for Female Education
Malala Yousafzai is a Pakistani activist for female education and the youngest Nobel Prize laureate. She is known for her advocacy of human rights, particularly the education of women and children in her native Swat Valley in Khyber Pakhtunkhwa, northwest Pakistan.
Occupation: Theoretical Physicist
Albert Einstein was a German-born theoretical physicist who developed the theory of relativity, one of the two pillars of modern physics. His work is also known for its influence on the philosophy of science.
Occupation: Primatologist
Jane Goodall is an English primatologist and anthropologist. Considered to be the world's foremost expert on chimpanzees, Goodall is best known for her over 60-year study of social and family interactions of wild chimpanzees in Gombe Stream National Park, Tanzania.
Occupation: Mathematician and Computer Scientist
Alan Turing was an English mathematician, computer scientist, logician, cryptanalyst, philosopher, and theoretical biologist. Turing is widely considered to be the father of theoretical computer science and artificial intelligence.
Occupation: Civil Rights Activist
Rosa Parks was an American activist in the civil rights movement best known for her pivotal role in the Montgomery bus boycott. The United States Congress has called her 'the first lady of civil rights' and 'the mother of the freedom movement'.
Occupation: Theoretical Physicist and Cosmologist
Stephen Hawking was an English theoretical physicist, cosmologist, and author who was director of research at the Centre for Theoretical Cosmology at the University of Cambridge at the time of his death. His scientific works included a collaboration with Roger Penrose on gravitational singularity theorems in the framework of general relativity.
Occupation: Environmental Activist
Greta Thunberg is a Swedish environmental activist who is internationally known for challenging world leaders to take immediate action against climate change. She first became known for her activism in August 2018 when, at age 15, she began skipping school to protest outside the Swedish parliament.