Carbonado compared to carbon‑12, relative to typical diamonds). Carbonado exhibits strong luminescence (photoluminescence and cathodoluminescence) induced by nitrogen and by vacancies existing in the crystal lattice. Luminescence halos are present around radioactive inclusions, and it is suggested that the radiation damage occurred after formation of the carbonados, an observation perhaps pertinent to the radiation hypothesis listed below. The origin of carbonado is controversial. Some proposed hypotheses are as follows: None of these hypotheses for carbonado formation had come into wide acceptance in the scientific literature by 2008. Supporters of an extraterrestrial origin of carbonados propose that their material source was a
What Time Is Love? riff from "What Time Is Love?". In 1993 "What Time Is Love?" was covered by U.K. based American Noise/Art Rock band The God Machine. The track appeared as a B- side on their limited silver vinyl "Home" single and a promo CD. In 1997 a trance cover-version was released by German producer Talla 2XLC and in 1998 Choci and Mark Sinclair released their own hard trance reworking entitled "What is Love?". Reviewing Drummond's book "45" for "The Observer" in 2000, Steven Poole labelled "What Time Is Love?" an "epic pop masterpiece". "The Observer" also described the "Pure Trance Original" as