Bowie's space connection would continue, of course, with his Ziggy alter-ego, songs like Starman and Moonage Daydream, and his lead role-as-alien in The Man Who Fell to Earth (1976/movie still above). Space Oddity's 'Major Tom' would re-appear in the songs Ashes to Ashes and Hallo Spaceboy. Bowie's son, Duncan Jones, has continued the family motif with his excellent feature film debut, Moon (2009). It's time to re-explore David Bowie. Suggested listening: David Bowie, *Hunky Dory, Low, Heroes, Lodger, Storytellers, Ziggy Stardust, Aladdin Sane, Outside. Spy Vibers can also re-mix Bowie's Space Oddity, which you can find as an app in the iTunes app store.
Recommended reading: Bowie, a Biography by music journalist, Marc Spitz. I'm reading the kindle edition now! Marc's website here. Review of the upcoming archive-book about Bowie's early years, Any Day Now, here.