Asteroid monitored from outer space to ground impact
Sandia's Mark Boslough (pictured) and colleague Dick Spalding were members of an international research team that published a paper in the March 26, issue of Nature about the 4-meter-diameter 2008 TC3 asteroid. This was the first and only time an aseroid has been discovered in space before it entered Earth's atmosphere, enabling computers to predict its arrival time and location of impact. Pieces of the asteroid landed (as meteorites) in Sudan on Oct. 7, 2008, and were collected for analysis by team members. (More information) Photo courtesy Sandia National Laboratories.