Key points from article :
An international team led by NASA has tested the International Asteroid Warning Network, which successfully tracked a potentially dangerous asteroid.
In addition, scientists were able to deduce the asteroid's shape and clock its rotation, giving it a "day" of 12 minutes as it tumbles as well as spins.
The odds of the Earth being struck by a large asteroid are small, but fact that even a small asteroid can deliver the impact of a tactical nuclear weapon, preventing or at least predicting such impacts is a high priority in the space community.
