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Asteroid 2012 DA14's close encounter is also a record-breaking celestial event, Yeomans said. An object this large only passes this close to the Earth about once every 40 years, and likely only hits the planet once every 1,200 years, he added.
Amateur astronomers have already captured some photos of asteroid 2012 DA14, and NASA plans to make detailed radar observations of the space rock to learn about its composition, spin and surface features, the scientists said.
The asteroid is similar in size to the object that exploded over Siberia, Russia, in 1908 in the Tunguska event. That explosion leveled hundreds of square miles of land, scientists said. While asteroid 2012 DA14 could potential create such destruction if it struck the Earth, there is absolutely no chance of an impact for the foreseeable future, NASA officials said.
Originally posted by timetothink
reply to post by TauCetixeta
I just said no one knows what it is made of.
And discussing something is not " spreading fear"......
It's called learning......seek the truth.
"We are going to be looking closely for evidence of seismic activity on 2014 DA14 as it passes by," says Binzel. "This is the first case of an object coming close enough to experience quakes AND where we have enough notice to plan observations."
YEKATERINBURG/CHELYABINSK, Russia (Reuters) - About 400 people were injured when a meteorite shot across the sky in central Russia on Friday sending fireballs crashing to Earth, smashing windows and setting off car alarms.
Residents on their way to work in Chelyabinsk heard what sounded like an explosion, saw a bright light and then felt a shockwave, according to a Reuters correspondent in the industrial city 1,500 km (950 miles) east of Moscow.