For all the time of studying the Universe, people have sent more than 200 probes into space. Today they are in the millions, and some hundreds of millions of kilometers from the Earth. These complex devices are the eyes and ears of humanity in our galaxy. They are always equipped with the latest technology and each next generation is more complicated than the previous one. At the same time, they must withstand large starting overloads and the harsh conditions of open space. The probes revolve in the orbits of other planets, land on the surfaces of planets and comets, and deliver samples of their rocks to Earth. A national geographic documentary tells the story of several probes sent to the distant worlds of the solar system.