NASA unveils a personal aircraft called the "Puffin." Joe Pappalardo of Popular Mechanics join's Martha Maccallum on America's Newsroom with more. Video courtesy of Fox News.

View the most popular Photo of the Day images from 2010, featuring a tiger in India, the cliffs of Moher, a sunset over Wakawau Bay, a puffin, penguins, a jet flying over a St. Maarten beach ...