lols...
can't believe you guys even embrace this allegedly "factual" conclusion about some "asteroid" hitting the earth.
it's not a surprise that NASA refuted the boy's findings since NASA has more capabilities than a 13 year old school boy who happens to submit a science project based on asteroids. it's the world wide web; anybody can make a very interesting story go front page in yahoo or msn. take for instance the SOTTO scandal which was first broadcast in youtube and had made it internationally.
however, i'm not belittling the little boy's findings. who knows, he might be the future NASA director for all we know.