The Buzz Log What’s hot on Yahoo! Buzz™ (and why)...

In today's round-up of some of the hottest stories in Buzz, the "NASA boy" is proved wrong, some Chinese Web users express their national pride, and a popular "Sex and the City" actress reveals her health struggles...

NASA sets the record straight
It read like a space-age tale of David and Goliath. An enterprising 13-year-old German boy recalculates the likelihood of an asteroid hitting Earth, alerts NASA, and the big American space agency acknowledges he's right. Only problem? It's not true.

Officials from both NASA and the European Space Agency have refuted the account, which sped across the Web at the speed of light. The young man's asteroid-strike numbers were not correct and the U.S. space agency has not, repeat has not, changed its mind about the 1-in-45,000 chance that the hurtling hunk of rock will collide with our planet. (The student thought it was a 1-in-450 chance. Yikes!)

Unfortunately, all this came out after articles on the teen's statistical success soared in Buzz, and even made it to the Yahoo! front page. Lookups for "apophis," the asteroid in question, surged into the top hourly searches.

Some Chinese Web users have had enough
According to TechCrunch, a new icon is spreading among Chinese users of MSN chat. Combining a big red heart and the word "China," the instant messenger emblem allows users to publicly express support for their country. The tech blog says Chinese e-chatters have adopted the "heart China" badge "by the thousands" in "response to Western bullying over recent Olympics protests." The reaction in Buzz has been similarly fervent. The story soared to the top of our Sci/Tech section.

Miranda speaks out
Cynthia Nixon revealed yesterday that she was diagnosed with breast cancer in 2006. The "Sex and the City" actress had a lump removed and received radiation treatment. Why did she wait so long to say anything? "I didn't want to make it public while I was going through it," Nixon responds. "I didn't want paparazzi at the hospital and things like that." Fans embraced the news with gusto. Several stories on the red-head's recovery bounced upwards in Buzz. Searches on "cynthia nixon" jumped 2,662%.

Also spiking in Buzz...

• Bill Cosby raps. Or, at least, produces a rap album. News of an upcoming collection from the legendary comedian and actor has Buzz readers enthralled.

• Hillary Clinton talks. In the latest round of punches over the "bitter" brouhaha, Huffington Post dredged up comments the presidential candidate made back in 1995. The blog post immediately spiked to the top of the Politics and Overall sections.