ScienceNASA hopes to launch 'flying saucer' after delay NASA hopes to try again to launch a "flying saucer" into Earth's atmosphere to test Mars mission technology after losing the chance because of bad weather, project managers said Thursday. The space agency is working with the U.S. Navy on the Hawaiian island of Kauai to see if it can get the experimental flight off the ground in June. During the current two-week launch window, the team came "tantalizingly close," but winds spoiled every opportunity, said project manager Mark Adler of the NASA Jet Propulsion Laboratory.

Here's what you might not know about these banes of childhood: Though other species of lice infest other mammals and even birds, Pediculus humanus capitis lives on the human scalp and nowhere else. A louse spends the first week or so of its life as an egg, or nit, before hatching into a nymph. Over the course of about seven days, the nymph will molt three times, growing bigger each time, until it reaches the adult stage.