UN to Take on Asteroids?Latest Worldwide Meteor/Meteorite Newswww.space.com. Secondly, a Space Mission Planning Advisory Group (SMPAG) has been meeting to plan for the possibility of a future asteroid impact ...Study uncovers forces that hold gravity-defying near-earth asteroid togetherPhysOrg - 5 hours Researchers at the University of Tennessee, Knoxville, have made a novel discovery that may