Childhood obesity, volcanoes, autism

In Reggio Emilia, epidemiologists and pediatricians are working side by side to address the problem of childhood obesity. Barbara Gallavotti and Giulia De Francovich went to find out how. Led by Alberto Angela, they will visit the place where everything that happens on the International Space Station is managed: the Mission Control Center at the Johnson Space Center in Houston. Volcanoes have a voice. Special microphones decode sounds inaudible to the human ear that herald imminent eruptions. Marco Visalberghi and Barbara Bernardini explain what's happening on Mount Etna. What is autism? Barbara Gallavotti and Rossella Livigni will take stock of a highly diverse and little-understood condition that affects thousands of families in Italy. The new satellites are small, inexpensive, and launched in their hundreds: who is rewriting the rules of space traffic, and how?