The turf of soccer fields is about to change its appearance: three laboratories, including an Italian one, are experimenting with synthetic and resistant turf destined to replace natural grass: Marco Visalberghi tells us about it. In the documentary “Samsara”, from the series “Asia-Stories of the Lost Jungle”, we will see how animals live in Asian forests during the rainy season. The elephant Chang learns to swim while the tiger Tcha bathes in the river. Tides are a fascinating phenomenon, always analyzed, however few know that during the tides the earth's crust also rises. Giangi Poli went down into a cave to tell us about this surprising and little-known event. In Naples, in the area of ​​Maschio Angioino, the remains of three ships from the Roman era were found. At the time, the area was that of the ancient port and many other finds are coming to light.