Following a successful release for the Berlin, Germany-based label Tresor as X-101, Underground Resistance returned with a second release in the three-part X-10... project, Explores the Rings of Saturn. This time working under the moniker X-102, Jeff Mills and company produced an ambitious, conceptual release comprised of numerous tracks named after the many moons and rings of Saturn. With each successive track on the album, you descend closer to "Groundzero (The Planet)." The concept proved quite successful, partly because the music seemed perfectly fit for the outer-space motif. Underground Resistance had long dealt with space and here the collective offers some of its most galactic techno ever -- a lot of harsh drum-machine percussion and plenty of cosmic synth riffs. In 1992, Tresor released the album on both CD and double-12" in Europe, while Underground Resistance released an EP of its own in the States that featured "Groundzero (The Planet)."