Portals Master

Do you think all astronauts are smart? It is definitely not about these guys, because they are sure visiting a black hole is quite a funny idea. Your mission is to save them!

Spin circle of portals, catch astronauts and save them all from becoming ghosts in depth of the black hole. Though, even worse is to catch them with portals of inappropriate color - energy fields overload will destroy portals and the last hope of the astronauts.