Meaning and usage of the word mission impossible in English

The phrase "Mission: Impossible" first appeared in a popular TV series by the same name that aired from 1966 to 1973. The show followed the exploits of a secret organization called the Impossible Missions Force (IMF) as they carried out dangerous and seemingly impossible missions for the United States government. The phrase itself originated from a tape recording played at the beginning of each episode, in which a voice would explain the details of the mission and then issue the following statement: "As of time X, all Communications with this Office Will Cease. Our Mission Is Impossible. We Must Accept This Task as we would Accept a Challenge from Death itself. We will Not Fail. Our First Mission: Impossible, should you decide to accept it …" The show's producer and creator, Bruce Geller, came up with the name and concept for the organization and its missions, drawing inspiration from the real-life CIA and similar intelligence agencies. He wanted to create a show that combined elements of espionage, adventure, and suspense, and "Mission: Impossible" quickly became a hit with audiences. Today, the phrase has become part of popular culture, often used to describe a seemingly impossible or highly challenging task. But it's important to remember that the missions carried out by the team on the TV show were, in fact, highly improbable and often involved intricate plans, sophisticated technology, and a lot of luck. In other words, the phrase "Mission: Impossible" may be exhilarating to say, but it's not always an accurate reflection of the difficulties involved in completing even the most seemingly impossible tasks.