Frank Drake
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Frank Donald Drake was an American astrophysicist and astrobiologist.
Drake speaking at Cornell University in 2017
Astrobiology
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Astrobiology is a scientific field within the life and environmental sciences that studies the origins, early evolution, distribution, and future of life in the universe by investigating its deterministic conditions and contingent events. As a discipline, astrobiology is founded on the premise that life may exist beyond Earth.
The interior of Europa
Asteroid(s) may have transported life to Earth.
Artist's impression of the extrasolar planet OGLE-2005-BLG-390Lb orbiting its star 20,000 light-years from Earth; this planet was discovered with gravitational microlensing.
The NASA Kepler mission, launched in March 2009, searches for extrasolar planets.