writes "A recently discovered
Apollo Asteroid, 2008 TC3,
exploded over Sudan at about 1046 EDT on October 7, 2008, according to
astronomer Tim Spahr of Harvard University 2008 TC3 was discovered on Monday by an observer at the Mt Lemmon
Observatory near Tucson, Arizona. 2008 TC3 is notable in that it is
the first Asteroid of its size that was identified before impact and tracking it
put the entire
Spaceguard tracking system to an extreme test. TC3 is estimated to be only two to five meters in diameter but
exploded with the force of a one kiloton of explosive power."
We mentioned the asteroid
last on Monday, when it was only at a 99.8 percent chance of colliding with Earth.