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
Rock Is Dead—Long Live Rock! Rock Is Dead—Long Live Rock! Rock Is Dead—Long Live Rock was the title of an unreleased 1972 autobiographical album by the British rock band The Who. In the liner notes for the Who's 1974 rarities collection "Odds & Sods", guitarist and lead songwriter Pete Townshend said, "I had an idea once for a new album about the history of The Who called "Rock Is Dead—Long Live Rock". That idea later blossomed into "Quadrophenia"." The sessions for the album spanned from 19 May to 6 June at Olympic Studios in London. "Rock Is Dead—Long Live Rock" was to be produced by