In part four of this episode on "The Discoverers," Galileo, now a reputable scholar at the University of Padua, proceeds to make a telescope out of lenses with the help of his instrument maker, Marc'Antonio. In this cartoon, an attempt is made to explain Galileo's discoveries.

In part five of this episode on "The Discoverers," Galileo is warned. His belief that the Earth revolves around the sun is sacrilegious. Giordano Bruno, who claimed this fact, was burned as a heretic by the Inquisition Tribunal.

Galileo is about to throw caution to the wind and reveal his startling discoveries about planet Earth.

Galileo is under close scrutiny because of his Copernican views. Unfazed, he carries on his research and his teachings. Will the Inquisition bring his demise or will his powerful friends, Pope Urban VIII among them, protect him?

Galileo faces an uncertain future. Behind the scenes are political and religious intrigues and enemies plotting his downfall. The Pope, until now sympathetic to Galileo, has a change of heart. Under pressure from all sides and insulted by his latest works, The Dialogue Concerning the Two Chief World Systems, portraying the Church's view through the character Simplicio (Simpleton), the pope finally sends Galileo to the Inquisition Tribunal.

Galileo is in prison. He tries one more time to prove his theories to his inquisitor. But he finally recants during the trial saying the famous sentence: "and yet... it turns"

In this episode of the "Once Upon a Time" animated series on world explorers, we begin to learn the history of Cairo and the Nile River in Egypt.

In the second segment of this episode of Les Explorateurs (The Explorers), James Bruce, our intrepid adventurer, encounters some pirates while trying to reach the source of the Nile.

As James Bruce and his crew arrive in Massawa in hopes of meeting the king, they are thwarted by the king's messenger, who was ordered not to let in any foreigners. But since the royal palace is in need of a doctor, and Bruce happens to be one, he may be forced to make an exception....

The explorers discover Abyssinia and the customs of its inhabitants, who have been cut off from the rest of the world for centuries. Will their visit bring a clash of cultures or a peaceful understanding? Find out in this episode.

The explorers arrive at Gondar, the former imperial capital of Ethiopia, and marvel at the wonders of the palace. But a deadly illness is threatening the lives of the children of the royal family...

After curing the queen mother's grandchildren of smallpox, James Bruce meets with the Ethiopian emperor, Tekle Haymanot, to tell him of his plans to discover the source of the Nile. But he soon finds out that he'll have to demonstrate his warrior skills if he wants to reach Lake Tana.

James Bruce, the intrepid Scottish explorer, finally reaches his goal, the source of the Nile... or so he thought. After all his trouble, his exploits are not well received in England. But his legacy will live on.

This new episode of "Il était une fois..." covers Cortés and the Aztecs. The story starts in 1519, when Ferdinand Magellan attempts to circumnavigate the earth. His ship makes it as far as Brazil.

The Maestro recounts the events just before Ferdinand Magellan's untimely death in 1521, only a year after he discovered the passage that would allow him to circumnavigate the globe.