After Hours

Desktop Wallpaper: NASA concept art

GLAST space telescope

An artist's concept of the GLAST space telescope in orbit above Earth.


About Mark Kaelin

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.

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