Scientist Meets the Space Invaders

Wikipedia says it was recorded at Channel One and mixed at King Tubby's with Scientist credited; Scientist himself told UnitedReggae that Tubby never mixed with the Roots Radics, a comment about Tubby-credited releases in general. The backing is by the Roots Radics, with drummers Carlton Santa Davis and Lincoln Style Scott, bassist Errol Flabba Holt, guitarists Noel Sowell Bailey and Eric Bingy Bunny Lamont, organists Wycliffe Steelie Johnson and Winston Wright, pianist Gladstone Gladdy Anderson and percussionists Christopher Sky Juice Blake and Noel Skully Simms. The engineers were Stanley Barnabas Bryan, Anthony Crucial Bunny Graham and Maxwell Maxie McKenzie, with cover art by Tony McDermott.

It is built on Linval Thompson productions, among them Wayne Wade's "Poor and Humble" reworked as "Cloning Process" and Johnny Osbourne's "Kiss Somebody" as "Quasar". AllMusic's Stephen Cook gave it 4.5 stars and called it a great dub record, and Tom Hull gave it a B-plus, one of the more legendary. Dub Mir reissued it in 2015. A retailer described ten effects-heavy tracks with mixing-board sound effects and ghostly echo.