Findings:

• least-energy orbit
• High Earth Orbit
• Fuzzy orbit
• orbit cranking
• Circular orbits
• The Jagged Orbit
• One and a Half Stages to Orbit
• Headlong into the irresistible orbit
• science orbit
• polar orbit
• The Orbit
• Costs of launching to orbit
• orbit (user)
• Standard orbit
• retrograde orbit
• Red Star, Winter Orbit
• -=orbit=- (user)
• closed orbit
• open orbit
• Nuke the entire site from orbit. It's the only way to be sure.
• in low orbit over a sea of objects
• being in his orbit
• A Closed and Common Orbit
• Space: Earth Orbit (category)
• Graveyard orbit
• Deep orbit
• From my orbit
• Clarke orbit
• Orbits
• I forget my own orbit
• unstable periodic orbits
• Sister Orbit (user)
• an orbit steadfast and looping and true
• orbit+ (user)
• Molniya orbit
• Abort To Orbit
• 46º halo
• Halo 2 Multiplayer Map Pack
• circumscribed halo
• I need these blue and black halos for comfort, to remind me where I am, who I am, when I am
• Halo 2
• Neutron Halo
• halo star
• Water-stained halos
• Halo Brace
• The Halo Benders
• halo boy (user)
• 22º halo
• omnidirectional halo
• Inverse Halo (user)
• Halo Effect
• halo (user)
• The Ballad of Halo Jones
• How to make a halo of fire in Photoshop
• galactic halo
• geostationary orbit
• geosynchronous orbit
• William Orbit
• low earth orbit
• orbit
• Orbit! (user)
• Lunar Orbit (user)
• Halo
• halos (in the mist)
• Halo 2 skulls
• Halo Haiku
• Halo 3
• Dawn: Lucifer's Halo
• snowflake halo

If you Log in you could create a "halo orbit" node. If you don't already have an account, you can register here.