Authors with Astrophysicist Profession Hubert Reeves astrophysicist Guillermo Gonzalez astrophysicist Michael Foale astrophysicist Margherita Hack astrophysicist Margaret Geller astrophysicist Neil deGrasse Tyson astrophysicist Joseph Hooton Taylor, Jr. astrophysicist John-David F. Bartoe astrophysicist