Luisella Giulicchi, the system manager for the ESA Copernicus Sentinel six mission, explains what an exoplanet is. Two young researchers do a simple experiment to show us how infrared rays work.

Nora goes to see Roberto to unburden herself and get some comfort. She had been counting on the money from the wedding to pay for a new roof, but Ugo had spent it on a cruise for Melody.

During the pandemic, children keep being born, which is a a joyous event. At the same time, people, especially the elderly, die with no loved ones around, no closure, no goodbyes. The doctors and nurses worry constantly about having been careful enough with their PPE.

Oriana tells Lisa about finishing her book, Un uomo (a man), and promoting it, especially in non-democratic countries. She travels to Iran in 1979 to interview the new leader, Ayatollah Khomeini, and to talk to someone who wants to translate her book.

We visit a famous monastery near Lecce, which got its name from the Olivetan monks who lived there. They had come from another famous monastery in the province of Siena, the Abbey of Monte Oliveto Maggiore. Alberto Angela describes the symbolism of the beautiful, mid-sixteenth century canopy well in the cloister. Today, the monastery houses the University of Salento.

Berardi isn't able to be honest with his boss about what leads to follow on the case. The jeweler shows up at the police station wanting his valuable pieces back. There's a little incident with Bibì at school. Berardi goes to see a guy he knows, who might be able to find out something about the jewelry.

Luisella Giulicchi, manager of the European Space Agency ESA, answers questions about light, infrared rays, and lightyears.

Fabiana greets her guests. Melody has gone off by herself to cry. Ugo finally confesses to Nora what he has done.

How can you stay fit if you are shut up in your apartment? It's not easy, but it can be done. And what if you're a musician? Your balcony becomes your stage, and the adjacent buildings, your audience.

Alekos figures out how to obtain some important evidence against the government, and discusses things with Oriana on the way to the airport, where she'll take a flight back to Italy.

In addition to its Baroque art and architecture, Lecce has a rich ancient history, underscored by a Roman amphitheater, in part still standing, right in the middle of the city. But Lecce's history goes even further back than that.

Berardi questions the photographer. Camilla shows up at police headquarters, too, with Bibì, wanting to ask Gaetano about his sister, who has not been answering her phone.

What is light? We use it every day, but where does it actually come from? The host suggests doing a little experiment. See if you can follow the instructions in Italian and try it yourself.

The day of the wedding arrives and Fabiana is at the altar with her soon-to-be husband, Giampi. But there are some surprises in store. For Giampi, but also for Ugo, who has to revisit his feelings about Nora.

Living in a studio apartment during the quarantine was especially challenging. Bergamo was one of the worst hit cities in Italy and the rate at which coffins piled up was shocking.