In 2009, the Kepler telescope was sent out to search for other planets. But when astronomer Tabetha Boyajian asked thousands of amateurs to comb through Kepler's data, they found something entirely unexpected.
As principal of a low-performing high school, Linda Cliatt-Wayman's students faced huge challenges. She describes how she transformed her school while providing unwavering love and support for her students.
Every 30 days, Matt Cutts gives himself a new challenge: writing a novel, giving up sugar, even chewing more slowly. He says 30 days is enough time to develop a habit or just make life more interesting.