There are at least two artists with this name.
1) Space Odyssey is neo-classical progressive metal project formed by keyboarder Richard Andersson and guitar player Magnus Nilsson. After the two having a dinner they decided to do something together and the guiding principles were set. Richard and Magnus have known each other for years but never got together in studio.
2) Space Odyssey is a Greek Uplifting trance artist, who is well known to all nitch o not/uplifting trance fans all over the world.