On Sunday, a NASA spacecraft is going to drop a container full of asteroid rubble for scientists back on Earth to study. It's expected to be the biggest sample scientists have ever received — at least a cupful. The landing, which involves a pogo-stick-like touchdown, marks the end of a 7-year, 4-billion-mile, 1-billion-dollar mission. A parachute bringing a special delivery to excited scientists? Sounds like a space stork, if you ask us. |