After Hours

NASA Images: More desktop wallpaper from the space program

Columbia and Discovery

The Space Shuttle Columbia on Pad 39A during the picture-perfect ascent of sister ship Discovery after lift off of STS-31.

Credit: NASA

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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