Students in South Korea have developed a robot snake that could one day be used in search and rescue missions. CNN's Kristie Lu Stout vists DGIST in Daegu for a close encounter. | CNN

RoboBall to the rescue?! Scientists at Texas A&M are building a futuristic spherical robot to tackle the moon’s toughest terrain and help with disaster rescue on Earth. The RoboBall is designed to go where wheels and legs can’t. Powered by a swinging pendulum inside, it rolls in any direction and never tips over. The robot could aid disaster zones, mapping floods and finding survivors. | cheddar news