Nasa: 'Dino-Killer Asteroid Not The Culprit'

The asteroid believed to have led to the extinction of the dinosaurs may not have been the culprit, according to American space organisation Nasa.

The asteroid may not have killed the dinosaurs. (Pic: Nasa/JPL-Caltech)

While scientists are confident a large asteroid did crash into Earth 65 million years ago, it now appears likely the original suspect, the Baptistina asteroid, was not to blame.
Research by Nasa's Wide-field Infrared Survey Explorer (WISE) seemed to have ruled Baptistina out.
WISE surveyed the entire celestial sky twice in infrared light from January 2010 to February 2011.