Jupiter is really good. I could have picked any really I like the entire suite. Mars is rather imposing as well
View: http://www.youtube.com/watch?v=Jmk5frp6-3Q
Yes yes, but to me, my favourite is Neptune. You will find it difficult to find a piece of music that conveys the aching beauty and majesty and yet deadly inhospitibility of space more that this does, a piece that communicates the sheer mindbending distances and timeframes involved, a piece that seems to be as old as the universe itself and on a journey to match, a piece that makes you feel alone, travelling through something bigger than you could even even begin to comprehend, a piece that even sounds like parts of it could be out of an Alien film or similar, a piece that.... Well, to me it has all that you really need to say 'DANGER! Outer Space!' in music form.
I'm pretty sure the etheral singing at the end doesn't stop and start like that in the recording I have, but, anyway.
Also, you might need to turn the volume up.
View: http://youtu.be/rErPKeZmn5w