After Hours

Desktop Wallpaper: The spectacle of underwater photography

Humpback whales

Humpback whales migrate from near the poles to tropical waters. Photographer: R. Wicklund Credit: OAR/National Undersea Research Program (NURP); University of North Carolina at Wilmington

Credit: NOAA


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.