The successful lecture series "Vagabondi del Cosmo" continues on Tuesday, 21 April, with a lecture by Marcello Musso, postdoctoral fellow in ICTP's High Energy, Cosmology and Astroparticle Physics section. He will speak of evolving universes, and will illustrate the theory that ours may not be the only existing universe. The lecture series is aimed at the general public and is delivered in Italian. Tuesday's lecture takes place at Casa della Musica, via dei Capitelli 3, Trieste, at 6 p.m.