When RNE asked if he would host a second popular science program, Ángel Rodríguez Lozano realised that the scheduled timing, Sundays between 3 and 4 p.m, meant that it would be sandwiched between sports broadcasts.

The intention was therefore to make the program even more accessible than Vanguardia de la Ciencia, with shorter interviews and more music.

[2] The program included science news, interviews, and biographies of great scientists, written by Carmen Buergo.

In the final, humorous section of the program, Ángel Rodríguez Lozano paid a visit to the archetypical mad scientist Alejandro Laguna, who supposedly lived and worked in a hidden laboratory in the basements of Radio Nacional de España, seven floors below ground level.

Alejandro would demonstrate one of his latest inventions, which usually defied the laws of physics, and Ángel played the role of a rather gullible spectator.