Near Misses
Links
Caveat Impactor
http://science.nasa.gov/headlines/y2002/26jul_nt7.htm
Provides a timeline and a history of events related to asteroid 2002 NT7 and explains the low chances of an impact with Earth.
1997 XF11
http://spacewatch.lpl.arizona.edu/1997XF11.html
Provides 3 black and white images that helped at the discovery of this object.
Asteroid On Collision Course With Earth
http://space.about.com/library/weekly/aa072602a.htm
Short article examining how much danger Asteroid 2002 NT7 poses to the Earth.