Odyssey: The Definitive Collection is a 2003 compilation album of works by Greek electronic composer and artist Vangelis. It includes two previously unreleased tracks: the opening theme from the film Cavafy and a new composition called "Celtic Dawn". All tracks were remastered.

Mythodea — Music for the NASA Mission: 2001 Mars Odyssey is a choral symphony by Greek electronic composer and artist Vangelis. It premiered as a single concert in Athens, Greece, in 1993 but a recording was only released in 2001 by Vangelis' then new record label Sony Classical, which also set up the NASA connection and promoted a new concert, this time with a worldwide audience.