[8][9] On a 4 August 2010 appearance on BBC Radio 4 with Kristy Lang, Björk discussed her love of the Moomins, who were celebrating their 65th anniversary that year.

In talking about the sparseness of Jansson's house with its one room and single desk and basement sauna, Björk admitted, "I could just relate to the purity in it."

[10] In an interview published on 3 August 2010 for Helsingin Sanomat, Björk revealed some details about the writing process: "At the time I was toying around with flutes quite a bit, and I mixed them with electronic sounds.

"[11] In addition to Sjón's involvement, Matthew Herbert and Mark Bell, both longtime collaborators of Björk's, co-produced the track with her.

[12] When the single was released on iTunes, it was announced that proceeds from the track would go to support UNICEF's efforts to aid children in Pakistan.

[14] A year later, "The Comet Song" was included as a bonus track exclusive to the Japanese edition of Björk's 2011 album, Biophilia,[15] featuring a new master made by Mandy Parnell.

[16] The Guardian summarised the collaboration of Björk and the Moomins as “the most perfect marriage of aural and visual sensibilities since Celine Dion stood wailing on the end of that big boat" and praised the song: "The chorus – if you can call it that – is brilliantly blunt: 'Comet, oh dammit.'

Musically, it's all clanking percussion, creepy crawly basslines and that crystalline voice adding gravitas to lyrics such as 'we need milk and cakes and a warm bed'.