Asteroids come and go, and some leave a very lasting mark on the Earth. Back in 2003 when Asteroid 2003 QQ47 was first discovered scientists projected that this giant doomsday asteroid would strike the earth with the force of 20 million Hiroshima atomic bombs. There was plenty of talk about this asteroid back then.
March 26, 2014, (March 21, 2014 the original date of impact) Asteroid 2003 QQ47 will be in our solar system’s orbit at about 49.9 million LD. What was the situation that had scientists believing this was a dangerous event, and then to change the warning sent out from a threat to a non-threat about this asteroid.
NASA did some recalculation back in September 2003 ruling out impact on the earth of Asteroid 2003 QQ47 but its been 11 years since its discovery. And the wait is over.