Science communicator in the context of "Public awareness of science"

Richard Dawkins (born 26 March 1941) is a British evolutionary biologist, zoologist, science communicator and author. He is an emeritus fellow of New College, Oxford. In 1995 he was named the first Simonyi Professor for the Public Understanding of Science, a position he held until 2008, and is on the advisory board of the University of Austin. Dawkins has won several academic and writing awards, among them the 2005 Shakespeare Prize and the 2006 Lewis Thomas Prize. Presenting the latter, Paul Nurse said “In eloquent, evocative prose, Richard Dawkins conveys the certainty that, rather than diminishing the myriad beauties of the universe and extinguishing wonderment at its mysteries, science reveals truths that are yet more awe-inspiring than the mysteries they solve.”

Known as Darwin's Rottweiler, Dawkins has written a number of popular books explicating evolution. In The Selfish Gene (1976), he popularised the gene-centred view of evolution and coined the word meme. In The Blind Watchmaker (1986), he explains how the cumulative, non-random process of natural selection, coupled with random variation, creates complexity. In Climbing Mount Improbable (1996), he explores how evolution gradually creates complex adaptations through a series of intermediates. The book grew out of his Royal Institution Christmas Lectures, Growing Up in the Universe. With Yan Wong, he co-authored The Ancestor's Tale (2004), a “Chaucerian pilgrimage to the dawn of life.”

Carl Edward Sagan (/ˈseɪɡən/; SAY-gən; November 9, 1934 – December 20, 1996) was an American astronomer, planetary scientist and science communicator. His best known scientific contribution is his research on the possibility of extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by exposure to light. He assembled the first physical messages sent into space, the Pioneer plaque and the Voyager Golden Record, which are universal messages that could potentially be understood by any extraterrestrial intelligence that might find them. He argued in favor of the hypothesis, which has since been accepted, that the high surface temperatures of Venus are the result of the greenhouse effect.

Initially an assistant professor at Harvard, Sagan later moved to Cornell University, where he spent most of his career. He published more than 600 scientific papers and articles and was author, co-author or editor of more than 20 books. He wrote many popular science books, such as The Dragons of Eden, Broca's Brain, Pale Blue Dot and The Demon-Haunted World. He also co-wrote and narrated the award-winning 1980 television series Cosmos: A Personal Voyage, which became the most widely watched series in the history of American public television: Cosmos has been seen by at least 500 million people in 60 countries. A book, also called Cosmos, was published to accompany the series. Sagan also wrote a science-fiction novel, published in 1985, called Contact, which became the basis for the 1997 film of the same name. His papers, comprising 595,000 items, are archived in the Library of Congress.

Derrick Pitts (born January 22, 1955) is an American astronomer and science communicator. Pitts studied at St. Lawrence University and has been employed at the Franklin Institute since 1978 where he is chief astronomer and director of the institute's Fels Planetarium. Pitts is a frequent guest on radio and television to explain the science of astronomy and share his enthusiasm for science in general.