“Galileo X-Plorer” explores the Son Doong Cave, the largest cave in the world. The goal: to cross it in four days! The next expedition leads to the Neumayer Research Station in the Antarctic at temperatures as low as -50 degrees Celsius and months of darkness. The third destination is at the other end of the world: the Bikini Atoll! At first glance, it looks like an island paradise where the Americans launched nuclear bomb tests in 1967 and which is still contaminated today.

Pitcairn Island is the most remote place in the world: the small volcanic island lies in the middle of the South Pacific, around 5,500 kilometers between New Zealand and Chile and can only be reached by water. The closest neighbors of the almost 40 locals are the astronauts on the ISS space station. “Galileo X-Plorer” reporter Tim Grübl embarks on a week-long journey with the container ship and uncovers the secrets of this forgotten paradise.