Planet of sound: Meteor blast resonated around Earth
By Matt Smith, CNN
The meteor that exploded over the steppes of southwestern Russia sent a low-frequency rumble bouncing through the Earth, giving scientists new clues about the biggest cosmic intruder in a century.
The big boom over Chelyabinsk on February 15 also produced a wave of sound thousands of times lower than a piano's middle C - far below the range of human hearing, according to the international agency that watches for nuclear bomb tests. The Comprehensive Test Ban Treaty Organization said that sound wave showed up on sensors from Greenland to Antarctica, making it the largest ever detected by its network.
Scientists then used that wave to calculate the size of the small asteroid that plunged to Earth, said Margaret Campbell-Brown, an astronomer at Canada's University of Western Ontario.
@CNNLightYears on Twitter
People in Orbit
Expedition 36 Commander
Expedition 36 Flight Engineer
Expedition 36 Flight Engineer
Contributors
-
Elizabeth Landau
Writer/Producer -
Sophia Dengo
Senior Designer
Iam exstending my thanks and appreciation to Secretary of Defense (Chuck Hagel) by taking some steps on the issues of Defense in order to put the Army under control.
Thanks !
Abraham.
If you think Edna`s story is impressive..., 4 weaks-ago father in-law basically made the small fortune of $7073 grafting a 10 hour week at home and their best friend's sister-in-law`s neighbour was doing this for four months and actually earnt more than $7073 part-time from there mac. use the steps on this site............ BIT40.ℂOℳ
Wow. Way to go in-laws!
It's earned, btw.