YU55

This asteroid, named "YU55" will be the closest to the earth in our recent history, between earth and moon, and ~1/4 miles across. It has been labeled by NASA as "potentially hazardous". It will be closest to Planet Earth on November 8th. Big media has broken the story this week:

http://www.foxnews.com/scitech/2011/05/09/big-asteroids-approach-november-excites-astronomers/

http://www.thestar.com/news/world/article/987006--giant-asteroid-to-pass-between-earth-and-moon

http://www.dailymail.co.uk/sciencetech/article-1383778/YU55-asteroid-hurtling-Earth-scientists-say-just-miss-us.html?ito=feeds-newsxml

http://en.wikipedia.org/wiki/YU55