NASA picks two finalists in space exploration competition

Nasa has announced two finalists for its billion-dollar robotic missions aimed at finding alien life and the origins of Earth. The winner of the two missions - one to explore a comet and another Saturn's moon Titan - will launch in 2020s. The missions were chosen under NASA's New Frontiers competition programme, from 12 proposals that had been submitted of last year. Nasa has announced two finalists for its billion-dollar robotic missions aimed at finding alien life. One is a mission to explore Saturn's moon Titan with an eight-bladed'dragonfly' drone (artist's impression pictured) 'These are tantalizing investigations that seek to answer some of the biggest questions in our solar system today,' said Thomas Zurbuchen, associate administrator for NASA's Science Mission Directorate.