As Hawkwind’s first four years on record are collated on a new 11cd boxed set, This is Your Captain Speaking… Your Captain is Dead, Steven Rainey delves into the murky world of space rock, and discovers much more than simply a band responsible for unleashing Lemmy on the cosmos. At the end of Stanley Kubrick’s 1968 masterpiece 2001: A Space Odyssey, astronaut Dr David Bowman is pulled into a vortex, going on a journey into the infinite, a kaleidoscopic assault on the senses that could mean everything or nothing. Both Kubrick and writer Arthur C. Clarke weren’t exactly in hurry…