Vanguardia de la Ciencia had a large audience worldwide.

In addition, Vanguardia de la Ciencia was retransmitted by several radio stations in Latin America and Spain.

In the correspondence section of one of the last programs, Lozano explained, in response to a letter from an outraged listener, that the decision to terminate the program was made due to a re-structuration of RNE, and that he was but one of 4,150 employees who had to leave.

The decision to terminate the programs was widely criticized in Spanish-speaking blogs.

After the closure by RNE of the radio programs Vanguardia de la Ciencia and El sueño de Arquímedes, Lozano created the website "Cienciaes.com" (Ciencia para escuchar) in 2009.