Transcript for Newly Discovered Asteroid Narrowly Misses Earth
ABC news, Washington. Thank you. Now to the asteroid flying close to New Zealand. At 2:30 this afternoon. It was a near miss to planet Earth and ABC reports scientists didn't even see it coming until just last week. Reporter: Tonight a narrow miss for all of us. Astroid measuring 60 feet, roughly the same size as a small house whizzed by Earth. As close as a cosmic inch, just 25,000 miles away. This astroid so big and powerful. If it had hit the Earth, the result, disastrous. It's very similar to the astroid that hit last year. Which had energy about 30 times. The bomb dropped over hiroshimo. Reporter: Tonight's asteroid was a close encounter. Ten times closer to us than the moon. It's the stuff in Hollywood movies. In real life most of them go undetected. Only 11,000 discovered so far. That's less than 1% of all astroids. This only spotted a week ago. But scientists need at least a decade warning to deflect something of this size. Then what we have to do is send a space graft out there and give it a tiny nudge and that's enough to keep it from hitting the Earth. Close calls encouraging scientists to find more of these before it's too late. ABC news, London.
This transcript has been automatically generated and may not be 100% accurate.