NASA space telescope finds fewer asteroids near Earth
Thursday, September 29, 2011 - 14:30
in Astronomy & Space
New observations by NASA's Wide-field Infrared Survey Explorer, or WISE, show there are significantly fewer near-Earth asteroids in the mid-size range than previously thought. The findings also indicate NASA has found more than 90 percent of the largest near-Earth asteroids, meeting a goal agreed to with Congress in 1998.