Hello and goodbye, asteroid 99942 Apophis. Your visit will be quick as you whip by planet Earth this week. Every time an asteroid comes close, earthlings start to wonder when they will get hit. See you when you pass by again in 2029.
The next close encounter to take seriously is an asteroid known as 2012 DA 14, which will pass quite close to Earth -- nearer than the Moon -- and perilously close to several orbiting satellites Feb. 15.
Weekly, sometimes daily, an asteroid zips close enough...Full Story