Asteroid Half News Today : Breaking News, Live Updates & Top Stories | Vimarsana

[explosion] [alarms ringing] martha: pretty incredible, right? every time i see it i'm would youed by that video. just hours later an asteroid half the size of a football field came between the earth and some of our communications satellites. now some scientists say that the best way to protect our planet may look like something from the movie "star wars." and it would start with building a real-life death star to fend these things off in the skies from slamming into us, okay? that is where we are. cory powell, joins me editor-at-large of "discover" magazine. >> live in amazing times. martha: ...

Jon: right now people are still talking about how frightening it was when a 10 ton meteor explode in the skies over central russia. you can see the fireball as it streaks across the sky at supersonic speed. the shock wave smashed windows, flying glass and debris injured almost a thousand people there. that happening just hours before a cosmic close encounter with an asteroid half the size of a football field. this thing is going to pass by earth later today. it will be closer than some of our own orbiting satellites. derek pitts is the chief astronomer at the franklin institute planetarium in ...