03-18-2019, 09:09 PM
https://www.bbc.co.uk/news/science-environment-47607696
A huge fireball exploded in the Earth's atmosphere in December, according to Nasa.
The blast was the second largest of its kind in 30 years, and the biggest since the fireball over Chelyabinsk in Russia six years ago.
But it went largely unnoticed until now because it blew up over the Bering Sea, off Russia's Kamchatka Peninsula.
The space rock exploded with 10 times the energy released by the Hiroshima atomic bomb.
Lindley Johnson, planetary defence officer at Nasa, told BBC News a fireball this big is only expected about two or three times every 100 years.
Well, I'm glad this didn't occur near any populated centres. The Chelyabinsk explosion of 2013 injured around 1,500 people - though, thankfully, it didn't kill anybody.
Still, we've had two of these over the past six years - which must be unusual since we're only due for two or three of them every century. I hope this means we won't have any more for decades!
A huge fireball exploded in the Earth's atmosphere in December, according to Nasa.
The blast was the second largest of its kind in 30 years, and the biggest since the fireball over Chelyabinsk in Russia six years ago.
But it went largely unnoticed until now because it blew up over the Bering Sea, off Russia's Kamchatka Peninsula.
The space rock exploded with 10 times the energy released by the Hiroshima atomic bomb.
Lindley Johnson, planetary defence officer at Nasa, told BBC News a fireball this big is only expected about two or three times every 100 years.
Well, I'm glad this didn't occur near any populated centres. The Chelyabinsk explosion of 2013 injured around 1,500 people - though, thankfully, it didn't kill anybody.
Still, we've had two of these over the past six years - which must be unusual since we're only due for two or three of them every century. I hope this means we won't have any more for decades!
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