Antimatter is a band formed by Duncan Patterson, former bass player and songwriter of doom metal band, Anathema. The project steps away from the heavy metal genre and presents a more melancholic, ambient trip hop atmosphere. The earlier Antimatter albums, Savior and Lights Out focused on melodic vocal lines, dark electronica and balances on the borderline between gothic and trip hop while later works (Planetary Confinement) & the upcoming Leaving Eden feature more of an acoustic based melancholic rock sound.

Shortly after the completion of Planetary Confinement, Patterson left the band and Moss has stated that he will release at least one more album under the name Antimatter, Leaving Eden, in the early months of 2007.