Maja in vesoljček

This is a story of a class of starboys who, with an exploration spacecraft, go on a "nature school" expedition to study life on Earth. Because they each possess a device, sort of luminous badge, they appear invisible to people from Earth. But the desire of Gubangu the starboy to get to know the Earth beings is so strong, that he can not suppress it. He befriends the girl Maya and, of course, gives her the badge, so that she would be able to see him. This causes a whole series of problems, both on Earth and on the Spaceship. Of course, it all turns out fine in the end.