The Official Asteroid Apophis Site
Asteroid Apophis is a possible Earth bound asteroid. Known as 99942 Apophis is a near-Earth asteroid that had caused concern in December 2004 because initial observations indicated a small probability (up to 2.7%) that it would strike the Earth in 2029. Recent news indicate that it could be on a collision course afterall.

NASA predicts On Friday the 13th, April 2029 asteroid 99942 Apophis will be perilously close to earth and will be within range to wipe out geosynchronous satellites.
Quoting NASA:
The future for Apophis on Friday, April 13 of 2029 includes an approach to Earth no closer than 29,470 km (18,300 miles, or 5.6 [...]