After Hours

Desktop Wallpaper: NASA concept art

Constellation Program

NASA's Constellation Program is getting to work on the new spacecraft that will return humans to the moon and blaze a trail to Mars and beyond. This artist's rendering represents a concept of rendezvous and docking operations between a crew exploration vehicle (CEV) and the International Space Station.



Mark W. Kaelin has been writing and editing stories about the IT industry, gadgets, finance, accounting, and tech-life for more than 25 years. Most recently, he has been a regular contributor to,, and TechRepublic.