The B612 Sentinel project

Former astronaut "Rusty" Schweickart and other scientific professionals that make up the B612 Foundation who's goal it is to map the roughly one million Earth crossing asteroids that exist in the inner Solar System and possibly pose a threat to Earth. At present we only know of 10 thousand objects. The Sentinal Project, with the aid of the infrared space telescope call Sentinel, hopes to put the telescope into operation in five year time.