2013 is shaping up to be the Year of the Asteroid. On February 15th a 10,000 ton meteor, undetected until it streaked through the sky, exploded above the Russian city of Chelyabinsk. According to National Geographic, the shock wave from the explosion circled the entire globe twice before dying down. Coincidentally, it came on the … Continue reading Difficulties of an Asteroid Capture Mission by Karen Burnham