feb 122013
 
Predicting the Future Path of Close Passing Asteroid 2012 DA1

  The record-setting close approach of an asteroid on Feb. 15 is an exciting opportunity for scientists, and a research team will use National Radio Astronomy Observatory (NRAO) and NASA telescopes to gain a key clue that will help them predict the future path of this nearby cosmic neighbor. This NASA diagram depicting the passage [continue reading]