How do we hear music coming from a speaker? Join Yanick as he investigates how vibrations are made in a speaker and how sounds travels through different mediums to bring the sweet sounds of music to our ears.
All life on Earth needs water so the search for aliens in the solar system has followed the search for water. But Brian's sixth wonder isn't a planet at all. Jupiter's moon Europa is a dazzling ball of ice etched with strange cracks. The patterns in the ice reveal that, far below, there is an ocean with more potentially life-giving water than all the oceans on Earth.
Around the world, a new generation of astronomers are hunting for the most mysterious objects in the universe - young stars, black holes, and even other forms of life. They have created a dazzling new set of super-telescopes that promise to rewrite the story of the heavens.