NASA's Jet Propulsion Laboratory has created a self-propelled autonomous snake-designed robot to explore extreme extraterrestrial terrain. It is called EELS (Exobiology Extant Life Surveyor). The concept emerges from the shape and working of a python snake. It was designed by an engineer of Indian origin, Rohan Thakker, who did his B. Tech in Mechanical Engineering from Visvesvaraya National Institute of Technology (VNIT), Nagpur. NDTV's Science Editor Pallava Bagla brings this exclusive story from California.