NASA prepares for the closest asteroid encounter in history

NASA astronomers are gearing up for what is expected to be a historic encounter with a massive asteroid this week. The massive asteroid, dubbed 2012 DA14, is estimated to be 150 feet (45 meters) across and it is currently slated to swing by Earth on February 15 with little room to spare. Astronomers project the asteroid will come as close at 17,000 miles (27,358 kilometers) to the surface of Earth -- the closest flyby in modern history... To continue reading, subscribe to Science Recorder today.