Spaceship (NOT FINISHED)

Astor and Stella are siblings. They live on the planet Mellonticus. It is like a futuristic world. But one day, a big explosion happens, and nobody can live on Mellonticus anymore. So they fly up into the sky a spaceship...

Fun facts about names:
Astor: it comes from the Greek word for "star".
Stella: Italian for "star".
Phobos and Deimos: the two moons of Mars.
Mellonticus: means "future" on Greek.