Image Credits:

SC_Area18, _GrimHex, _DyingStar, _BrokenMoon, _Kareah 
by Rellim (SC handle)

Canyon, Highway, Shiodome, BigSight, LA Heliport:
http://www.hdrlabs.com/sibl/archive.html
sIBL Archive - Free HDRI sets for smart Image-Based Lighting

Sunset
https://commons.wikimedia.org/wiki/File:Afterglow_of_a_sunset.jpg
This file is licensed under the Creative Commons Attribution 2.0 Generic license.
At Toyomi fishermen's wharf, Tokyo.
Author: Author 	Masato OHTA

OutThere1 and 3  made with Spacescape:
http://alexcpeterson.com/spacescape