"Galaxy Song" is a Monty Python song written by Eric Idle and John Du Prez. The song first appeared in the 1983 film Monty Python's The Meaning of Life and was later released on the album Monty Python Sings. The song was released as a single in the UK on 27 June 1983 when it reached No. 77 in the charts and again on 2 December 1991 as a follow-up to the successful reissue of Always Look on the Bright Side of Life. In 2014 the song was featured in the live stage show Monty Python Live (Mostly) which was followed by another single release on 13 April 2015, this time in collaboration with Stephen Hawking. Premise and synopsis The song originally debuted during the comedy sketch "Live Organ Transplants". The paramedic (John Cleese), upon failing to persuade Mrs. Brown (Terry Jones) to donate her liver, opens the refrigerator doors to reveal a man wearing a pink morning suit (Eric Idle). The man accompanies Mrs. Brown through outer space singing various statistics about the galaxy. The upshot of the song (which follows a synthesized instrumental montage that, in the movie, is accompanied by a computer-animated picture of a woman being impregnated) is that in the grand scheme of the universe, the likelihood of Mrs. Brown's existence was almost zero, but that she should "pray that there's intelligent life somewhere up in space, 'cause there's bugger all down here on Earth". The singer returns to the refrigerator, at which point Mrs. Brown admits that the singer convinced her to hand over her liver. Accuracy of astronomical figures The lyrics include a number of astronomical quantities, the vast majority of which are accurate to within one or two significant figures. A few statements are only approximately correct or have liberties with definitions, likely to fit within the meter of the song. Idle sings that the Earth is "revolving at nine hundred miles an hour". The current estimate for the rotational speed at the equator is 1040 miles/hr (1670 kilometers/hour). 900 miles is correct if this is given in nautical miles, but it is more common to speak of knots in this case. He gives the Earth's orbital speed as per second, which is accurate to two significant figures. Idle states that the Sun is "the source of all our power". In fact, three notable sources of electrical power are not directly traceable