Detailed text transcripts for TV channel - KGO - 20111109:11:26:00
>> is it an asteroid? >> reporter: bingo. the size of an aircraft carrier, and it is zipping through space 200,000 miles away which may sound pretty far, but it's not. >> 200,000 miles away is close in cosmic terms. nearer than the moon. >> reporter: director of the griffith observatory and the man with the good news. >> this one is not going to hit the earth. >> reporter: if it did, scientists say it would carve out a crater 1,700 feet deep. >> yeah? >> reporter: you chuckle now, but scientists say a rock this big wouldn't be as devastating as the one that kill the dinosaurs, it would certain...