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The scientific study of the possible origin, distribution, evolution, and future of life in the universe, including that on Earth, using a combination of methods from biology, chemistry, and astronomy.

as′tro·bi′o·log′i·cal (-ə-lŏj′ĭ-kəl) adj.
as′tro·bi·ol′o·gist n.


(Astronomy) a person who studies astrobiology
References in periodicals archive ?
In the previous book he coauthored, Rare Earth, Ward, a NASA astrobiologist, posited that alien life won't manifest itself in the form of intelligent or humanlike creatures but will probably be simple.
David Grinspoon is an astrobiologist and author at the Library of Congress.
According to Dirk Schulze-Makuch, an astrobiologist at Washington State University, and Ian Crawford, a professor of planetary science and astrobiology at the University of London, the moon could have supported life soon after its formation from a debris disk about 4 billion years ago, and then again about half a billion years later, when lunar volcanic activity was at a peak.
But dammit Jim, I'm an astrobiologist, not a cosmologist.
Abel MAaAaAeA@ndez, an astrobiologist at Arecibo and the director of PHL to Business Insider that successful observations would pick up the signal again, coming from Ross 128 and not anywhere else.
Washington State University astrobiologist, who is leading a group of 20 scientists, call the mission BOLD.
"So you could actually cross through the event horizon of a giant black hole and not really feel anything," the astrobiologist said.
The need to do so is clear; on Mars we have no way to test the method, while on Earth we can," planetary scientist and astrobiologist Christopher McKay, with NASA's Ames Research Center in Moffett Field, Calif., told Discovery News.
If you make a shopping list of all the chemicals you'd need to create life, they're all found in space, says astrobiologist Max Bernstein of NASA's Ames Research Center and the SETI (Search for Extraterrestrial Intelligence) Institute, both in Mountain View, Calif.
Addressing the topic in an email to, Chris Mckay, an astrobiologist at NASA's Ames Research Centre in Moffett Field, suggested the need for more convincing proof supporting the findings.
"This has fundamentally changed the concept of a habitable zone," said researcher Rory Barnes, a planetary scientist and astrobiologist at the University of Washington.
To astrobiologist Nathalie Cabrol (SETI Institute), the geology inside Gale suggests a water-rich environment that changed "from warm and wet to cold with ice-covered water, which could have provided suitable oases for various communities of microorganisms."