Scientists and sci-fi lovers will be looking to the stars tomorrow as they celebrate Russian Cosmonaut Day.
The event marks the anniversary of the day that Yuri Gagarin became the first man in space after taking a 108 minute flight aboard Vostok 1.
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To help you prepare for a day of science fun, here are 10 tracks about space travel.
The Planets: Mars, the bringer of war
This track is part of Gustav Holst's Planet suite. The concept of the work was astrological, with each movement conveying the ideas and emotions associated with the influence of the planets on the psyche.
Man on the Moon
Released as the second single from their 1992 album Automatic for the People, this track is a tribute to Andy Kaufman. After REM split in 2011 Stipe said this was the song he'd most miss performing.
Rocket Man (I think it's going to be a long, long time)
Written by Elton John and Bernie Taupin, this track echoes the theme of David Bowie's Space Oddity. The song is said to have been inspired by Taupin's sighting of a shooting star or a distant aeroplane.
Two versions of the track exist, the original, commonly known as the Stoned Again mix, and a slower version that appeared on the band's second album, The Return of the Space Cowboy.
Levi's decided to use this track in their 1995 UK advert after hearing it on a Manchester Radio Station. It became the fastest-selling UK single since Can't Buy Me Love, shifting 420,000 copies in its first week.
This track is taken from Compass' debut EP of the same name. His single Back to Me received over 150,000 views on YouTube in its first week.
The Final Countdown
Released in 1986, this track was originally written by Joey Tempest as an opening song for the band's gigs. Its lyrics were inspired by David Bowie's Space Oddity. It was certified gold in the UK in 1986.
This track is taken from Bush's 1985 album, Hounds of Love. The album marked Bush's breakthrough into the US charts, with Running Up That Hill reaching the Billboard Top 40.
Taken from the band's 2013 album Native, Ryan Tedder came up with the idea for this track while working with Beyonce on her 2011 album 4. It topped the charts in countries including the UK and Canada.
Released in 1969, it's been claimed that the lyrics for this track lampoon the British space programme. The song became so well known that Bowie's second album was renamed after it when it was reissued in 1972.