Mark Snow, the veteran television composer who turned “The X-Files ” theme into an unlikely chart hit in the 1990s, died Friday at his home in Connecticut. He was 78.

In addition to The X Files main theme, which was released as a single in 1996 and charted internationally, Snow composed the music for over 200 episodes and both feature films of the hit science fiction show about a pair of paranormal FIB investigators.

Mark Snow, best known as the game-changing composer for "The X-Files," has died. Variety reports the composer died at his home Friday in Connecticut. He was 78. Read More: 'The Office' Star Announces He's Quitting Comedy Snow was a 15-time Emmy nominee,