Big Astroid News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Hurdling toward earth several times actually. but say it happens in real life and bruce willis isn't available to help prevent armageddon? well, nasa wondered if an astroid could be blasted into changing its course. and this week the space agency launched a first of its kind mission to test the theory. cnn's kristin fisher has the details. >> three, two, one, and liftoff of the falcon 9 and d.a.r.t. >> reporter: the launch of nasa's first ever planetary defense mission, instead of carrying satellites, telescopes or people, this spacex falcon 9 rocket is launching a spacecraft to test a technol...

500 miles away -- >> well, in february, february 15, we all remember that amazing footage of dash cams -- >> yes, i remember that. >> that same day was already people were on the look-out because we were watching for this big astroid, about three times as big. >> scared me there. >> about 50 meter diameter astroid. we had seen it a year ago. and it came within 17,000 miles. that's inside the orbit of our satellites. so we are getting into sandra bullock and clooney territory here, with "gravity." and see how fast things move out there. >> okay. weed there was one issue. what was the one issue?...