He then went to Italy where he obtained his Laurea degree in 1967 working with Carlo Cattaneo on Hamiltonian methods in general relativity at the University of Rome.
He returned to Montevideo in 1968 and in collaboration with Luis Saravia he modernized the old Institute of Physics at the University of the Republic and created an active research group in field theory and relativity.
He also was instrumental in the consolidation of the Latin American Center for Physics (CLAF), which supports research activities in the region.
In 1971 in the wake of the coup d'état in Montevideo, he left for Venezuela to become a member of the at the time recently created Universidad Simon Bolivar, in Sartenejas valley, Miranda state, near Caracas.
From 1982 to 1985 Aragone was director of the Astronomical Research Center (CIDA), located in Apartaderos in Merida State.