Closing arguments in David Coppedge's wrongful termination case against JPL begin Monday in Los Angeles Superior Court.
Coppedge worked as a team lead on the Cassini mission exploring Saturn and its many moons and claims he was discriminated against because he engaged his co-workers in conversations about intelligent design and handed out DVDs on the idea while at work.
Intelligent design is the belief that a higher power had a hand in creation because life is too complex to have developed through evolution alone.
Coppedge was let go last year after 15 years on the mission.
JPL denies the allegations.