Cosmic Cannon

The Cosmic cannon is a weapon in Fallout 4's Creation Club, available after installing the "Captain Cosmos" mod.

Characteristics
The Cosmic cannon is a pre-War weapon designed by the United States Space Administration and loaned to the Captain Cosmos TV crew for the shooting of their season finale, along with the CC-00 power armor, the Captain Cosmos space suit, and other USSA equipment, delivered by General Tucker on October 22nd to compensate for the accident that occurred with the ArcJet Systems journalist. The weapon itself is quite odd in design, lacking any sort of covering in the back, yet having a plastic covering at the front, with exposed wiring and a large stock at the back. For ammo types, the cannon can fire one of three variants of projectile: sonic, laser, and cryo.

Location
Found at Hub 360, in the Hubris Television Studios section.