Anastasia the Super Dog in Space by Alicia Paintner

It was bad enough that human's killed the Earth and had to flee in a caravan of spaceships in hopes of greener pastures, but as far as Hailey was concerned the fact that they left all the animals behind was unforgivable. Hailey's surprise discovery is going to change that. More than five centuries after a mass exodus of human's left earth, our heroine is sick of her smothering Mother and judgmental noisy shipmates. In an attempt to spread her wings and get some alone time, she sets off on her maiden voyage to scavenge scrap and make her fortune. Her alone time is brought to an end by a momentous discovery. What follows is a series of catastrophes and a strange cast of characters that lead her to more adventure and love than she ever thought possible.