Definition of "astrophysicist" []

• One who studies astrophysics. (noun)

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• "Ravi Sood, an astrophysicist from the University of New South Wales who was overseeing the balloon launch, said quick-changing wind conditions can cause difficulties for launching such large balloons."
• "Neil deGrasse Tyson, world renowned astrophysicist, is doing a live taping of his interactive radio show, Star Talk, tomorrow at 8 PM on Chataboutit. com."
• "Hint: the name of the astrophysicist is Sean M. Carroll."