Rafael Guzmán from Department of Astronomy of the University of Florida has given a talk to students of Physics at Universidad Complutense de Madrid. Prof. Guzmán from University of Florida was acclaimed by the crowd of students who were delighted by his enthousiastic words.

The success of Rafael Guzmán's talk 'The Dark Side of the Universe' was the simple presentation of hard concepts which are the frontier of Astrophysics knowledge.