Carbonado supernova which occurred at least 3.8 billion years ago. After coalescing and drifting through outer space for about one and a half billion years, a large mass fell to earth as a meteorite approximately 2.3 billion years ago. It possibly fragmented during entry into the Earth's atmosphere and impacted in a region which would much later split into Brazil and the Central African Republic, the only two known locations of carbonado deposits. Carbonado Carbonado, commonly known as the "black diamond", is the toughest form of natural diamond. It is an impure form of polycrystalline diamond consisting of diamond, graphite, and
What Is Life song offers "little overall coherence between words and music". In a 2010 poll to find the "10 Best George Harrison Songs", AOL Radio listeners voted "What Is Life" third behind "My Sweet Lord" and "Blow Away". A similar list by Michael Galluci of Ultimate Classic Rock placed it second (behind "My Sweet Lord"), as Galluci wrote of the track having "a giant pop hook as its guide" as well as "the catchiest chorus Harrison ever penned".<ref name="Gallucci/UCR">Michael Gallucci, "Top 10 George Harrison Songs", Ultimate Classic Rock (retrieved 28 March 2014).</ref> In 2009, Matt Melis of Consequence of Sound listed it