"An asteroid at least 500 feet long will make a rare close pass by Earth next week, but there is no chance of an impact, scientists reported Thursday."

http://news.yahoo.com/s/ap/20080124/ap_on_sc/earth_asteroid

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UPDATE:

First Image of Approaching Asteroid

"Astronomers have obtained the first images of an asteroid on course to make its closest approach to Earth on Tuesday, showing the space rock is lopsided."

http://news.yahoo.com/s/space/20080128/sc_space/firstimageofapproachingasteroid

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Astronomers to get rare look at visiting asteroid

""We don't yet know anything about this asteroid," Mike Nolan, head of radar astronomy at the Puerto Rico observatory, said in a statement."

http://news.yahoo.com/s/nm/20080125/sc_nm/asteroid_dc

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