3D printing is going to be a huge factor in conducting the safe exploration of the Moon and Mars. Experiments carried out on the "nearby" Moon will be crucial for later trips to Mars, a much more complicated, long-term enterprise.

Melody comes back to the atelier having come to a decision, one that not everyone is happy about. Ugo goes to see his lawyer about Nora, and Nora gets an estimate for the roof.

Maria and Guido take Lele Ju and Annuccia for a horse and buggy ride to explain to the kids that Lele Ju will have to eat special food. Libero goes to see his daughter at the restaurant to talk about Enrica's offer.

There were a few places untouched by the pandemic, for example, near the North Pole. Some people had a hard time getting out of bed. Others became creative.

Alekos and Oriana have a romantic moment but he is always thinking about his battle against the government. Oriana has her own ideas about how to run a successful resistance.

Bel canto (beautiful singing) and lyric opera began in Italy, and, not surprisingly, this country has the highest number of opera theaters in the world. Thus we conclude this episode of Meraviglie (wonders).

Gaetano and Camilla grab a cofffee during her break, but they get interrupted by a visitor and then by a phone call about a murder. Gaetano rushes off to the scene of the crime.

The International Space Station has the goal of developing and testing technologies for space exploration that are capable of keeping a crew alive on long-term missions in lunar and Martian orbits. To do this, preliminary work is being done on the Gateway platform: a space station beyond Earth's orbit.

Melody is in shock to find her beloved Giampi planning to marry someone else, and explains it to the others. Not everyone agrees on how to deal with this new problem.

Enrica's words must have hit home because Libero has a bad dream involving Guido and Maria... He gets out of bed to check out the situation.

A man tells about how maddening it was to realize he had made a mistake in giving his mother a kiss. In March 2020, all of Italy shut down. Everything stopped, to try and limit the spread of Covid-19.

Oriana gets a chance to browse around in Alekos' studio before getting some sleep. The next day, she has to call the office and explain why she is still in Athens. Aleko shows up and has a surprise. He wants to enjoy his freedom, but has lots of work to do, too.

Gioachino Rossini had great success as an opera composer at the San Carlo Theater in Naples, writing a large number of operas while still quite young. When he left Naples for Paris, he was replaced by another star composer, Gaetano Donizetti.

Today, Camilla, contrary to her normal routine, is all dressed up and early for school. Her daughter notices right away, as does the nosy custodian in their apartment building. We soon discover why.

Melody got caught in the rain. She is focused on her coming wedding and has a favor to ask of Dino, who is having a very hard time hiding his feelings.