All Biography Videos
Marin Mersenne: The Birth of Modern Geometry
Fr. Angelo Secchi S.J., Jesuit Astrophysicist
Fr. Angelo Secchi, S.J., father of astrophysics, is one of the greatest astronomers you have never heard of.
Fr. Angelo Secchi, S.J., father of astrophysics, is one of the greatest astronomers you have never heard of.