a youtube journey to the outer limits or inner space (using quite a loose definition)

Hawkwind - Sonic Attack
http://www.youtube.com/watch?v=_r_kq96bAtQ

The Nice - America
http://www.youtube.com/watch?v=Dg9jHTYZ-6U

King Crimson - 21st Century Schizoid Man
http://www.youtube.com/watch?v=ONJndTdXrg0

Nektar - Journey to the Centre of the Eye (part 2)
--the guitar from about 4:00 in--
http://www.youtube.com/watch?v=ojbDoRrJXEc

Annexus Quam - Osmose III
http://www.youtube.com/watch?v=HZuE1hokGDg

String Driven Thing - Heartfeeder
--if you only listen to one all the way through--
http://www.youtube.com/watch?v=bN_kGO1w5Rw

Argent - God Gave Rock'n'Roll to you
http://www.youtube.com/watch?v=QsG5V-o6uxY

Jethro Tull - Skating Away on the Thin Ice of a New Day
http://www.youtube.com/watch?v=JDosgkws0-c

a great Keith Emerson organ solo
http://www.youtube.com/watch?v=1jOvektfLpU

Pink Floyd - One of These Days
http://www.youtube.com/watch?v=k1665BxujmA

Hawkwind - Assassins of Allah
http://www.youtube.com/watch?v=r6mxOeoG730

MORE PLEASE