it describes several kids in a spaceship, accidentally jettisoned into space and trying to go home.

a martian girl who teleports, and has an alterego (susan??) somewhere else. her alterego came on board (to replace the martian girl of course), and she can breathe any air...

a girl from planet venus who has a red face.

a boy from some planet in the solar system has spirally-shaped ears and great hearing ability...

a black boy from earth.

a female teacher who is a little bit crazy... (I remember in one episode the woman sucks all the knowledge from the spaceship and her head expanded like a giant turnip...)

and a female robot.

I remember several episodes.

in one episode, these guys accounter a blackhole, with the message sent by themselves, they escaped that blackhole.

in another episode, these guys rescued a guy in a lifepod dressed like a knight... he claims there are ghosts on the ship...

in another episode, they fell on this planet where there's a creature whose saliva can give them strength and power...