It is available on a CD of Chappell music library cues called Science Fiction.
Archival/Historical Recordings, Era: 1950s, Era: 1960s, Film Music Styles, Science/Space/Technology
Cult 1950's-60's science fiction with alien sounds and cosmic atmospheres.
Pierre Gabaye [PRS]
Marlowlynn Ltd. [PRS]
You can listen to Suspense here
With thanks to Michael Seely