The duo's popularity grew rapidly with the release of their second self-titled album, in 1993. The album included complex arrangements and textures, opening with the two-minute track "Time Becomes". The track consisted of two slightly delayed, looped samples of a line from the Star Trek: The Next Generation episode Time Squared spoken by actor Michael Dorn as the character Lieutenant Worf: "... where time becomes a loop" being played simultaneously through the left and right channels, respectively (until one cycle of phase difference has happened). The same sample was used at the beginning of "the Moebius", the opening track in the previous album. This audio pun was intended to make listeners believe that they had bought a mis-pressed album (Orbital 1 packaged as Orbital 2). The album reached #28 on the UK album charts, staying in the chart for 15 weeks. "Halcyon" was remixed for the album, as "Halcyon + On + On". Versions of this song played live by the band have incorporated diverse samples, including "You Give Love a Bad Name" by the band Bon Jovi, "Heaven Is a Place on Earth" by Belinda Carlisle, and in 2004 "I Believe in a Thing Called Love" by the band The Darkness.

The first two albums are commonly known as "The Green Album" and "The Brown Album", after the colours of their covers (although the first album's cover is yellow, one of the first printings had a misprint causing the cover to be yellow-green).