edward lou said the asteroid that hit russia could have caused more damage had had struck new york. the astronaut injured 1500 people. the threat of a bigger impact is quite likely. >> there's a 30% chance that there's a 5 megaton impact that's going to happen on this planet this century. so this is not hypothetical. >> lu founded the b 612 foundation to build a privatesy financed space telescope to deflect asteroids. it's estimated to cost $4 # 50 million. >> speculation is rampant after hackers shut down computer systems at three top south korean television stations and two banks. many think north korea could be behind the cyber attack. police say it'll be several more days before they can make a determination. north korea has staged several cyber attacks over the past few years. that country is considered to be one of the world's top hackers. >>> a wet arrival for spring. considering how dry this year has been, is our water supply hurting? >>> back in 10 minutes tracking lingering showers. when they get out of here, when we warm up. i'll have the specifics in 10 minutes. [ male a

edward lou said the asteroid that hit russia could have caused more damage had had struck new york. the astronaut injured 1500 people. the threat of a bigger impact is quite likely. >> there's a 30% chance that there's a 5 megaton impact that's going to happen on this planet this century. so this is not hypothetical. >> lu founded the b 612 foundation to build a privatesy financed space telescope to deflect asteroids. it's estimated to cost $4 # 50 million. >> speculation is rampant after hackers shut down computer systems at three top south korean television stations and two banks. many think north korea could be behind the cyber attack. police say it'll be several more days before they can make a determination. north korea has staged several cyber attacks over the past few years. that country is considered to be one of the world's top hackers. >>> a wet arrival for spring. considering how dry this year has been, is our water supply hurting? >>> back in 10 minutes tracking lingering showers. when they get out of here, when we warm up. i'll have the specifics in 10 minutes. [ male a