NASA's Stardust-NExT mission took this image of comet Tempel 1 at 8:39 p.m. PST (11:39 p.m. EST) on Feb 14, 2011 for this cool space wallpaper. The comet was first visited by NASA's Deep Impact ...
Reader Edwin wants to know how to change the themes in Windows 7. Specifically, he has multiple photos he wants to use for his desktop background, but can’t find a way to add more than one. If you’ve ...
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