Photo: NASA/Public domain
70-eight years ago today Carl Sagan was born in Brooklyn, New York. Little did he, or his parents, know that he would leave a lasting impression on science for decades after his death.
See our favourite Sagan clips >
Sagan, who died in 1996, was an astronomer, astrophysicist and an avid and skilled science communicator. He taught at Cornell University, hosted the PBS series Cosmos: A Personal Voyage, wrote the book Contact and many others, and published more than 600 scientific papers.
You can watch the whole Cosmos series on Hulu to get more Carl. And be ready: There’s a Cosmos reboot, hosted by Neil DeGrasse Tyson and produced by Family Guy voice actor Seth MacFarlane, possibly coming in spring of 2014.
Sagan explains the Drake Equation, which is used to estimate the number of alien species there could be in the universe.
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