Parallels (audio drama)

You may also be looking for the novel on which this was based.

Parallels was one of a series of Station Zero audio dramas released by Talking Brain Studios. An adaptation of the 2006 Continuing Saga novel of the same title, the audio drama was released in 2011.

Publisher's Summary
When the newly-commissioned carrier ship Gnostic Dawn experiences a drive malfunction during a test flight, all hope for recovery seems lost. Luckily for those aboard, Commander Rebecca Tate and some of her crew from Station Zero were also on the flight and are sure they can get the malfunctioning ship back to where it belongs.

The only problem: where exactly does it belong? The ship is unstuck in space and time, tracking through strange divergent realities, some of which seemingly wink out of existence the moment the ship departs. When all is said and done, some questions will be answered, only for others to arise. And there is one question that outweighs all the others:

How can you go home when there might be no home left?

Changes from the novel
Scenes set in the reality featuring Vanessa Sharpe and her daughter were altered to make them consistent with the events of Strange Matters, which had aired the year before. The daughter's name was changed from Olivia to Katrina, and the planet's coordinates read off by the navigator are replaced with the coordinate system used in Zeropoint.