Give me that to start so we don't forget. Francesco, you said we don't need to go to Mars to find alien life, and indeed, last time we spoke, you were in Sardinia and you were training European astronauts. So what do you, a speleologist, tell and teach to the astronauts?
Gracias. (Aplausos) Bruno Giussani: Gracias, Francesco. Empecemos y recapitulemos. Francesco, dices que no hay que ir a Marte para encontrar vida extraterrestre, y, de hecho, la última vez que hablamos, estabas en Cerdeña y entrenabas astronautas europeos. ¿Qué dice y enseña un espeleólogo a los astronautas?