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 Is Life of "What Is Life" on his 2005 tribute CD "Something for George". "What Is Life" was performed live at George Fest 2014 by "Weird Al" Yankovic. The recording is available on YouTube. The following musicians are believed to have played on "What Is Life": What Is Life "What Is Life" is a song by the English musician George Harrison, released on his 1970 triple album "All Things Must Pass". In many countries, it was issued as the second single from the album, in February 1971, becoming a top-ten hit in the United States, Canada and elsewhere, and topping singles charts