The Horizon Weapons Platform is an MIRV type delivery system which has six Mark IX Nuclear Warheads. In 2007, it was used against the Asurans 2 months after the Daedalus had discovered a fleet of ships being built on Asuras. The Apollo was sent to Atlantis with Horizon. The strike was successful, but the Asurans quickly rebuilt afterwards and retaliated by sending a Stargate-Satellite Ship thing to attack Atlantis.
- SGA: First Strike