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Tag archives: meteorites

Partial eclipse, meteorites and northern lights enthral a nation

Spot on: this photograph of the Sun taken during the eclipse clearly shows a sunspot (Courtesy: David Bloomfield)

Spot on: this photograph of the Sun taken during today’s eclipse clearly shows a sunspot. (Courtesy: David Bloomfield)

By Hamish Johnston

Earlier today millions of people in north-western Europe had the opportunity to see a partial eclipse of the Sun – or a total eclipse for the lucky few in northern Norway and the Faroe Islands.  Although it was a bit hazy here in Bristol, we were treated to spectacular views of the Moon covering 87% of the Sun. We have put up a Flickr album of images taken by colleagues here at IOP Publishing including the amazing photo above. It was taken by David Bloomfield and clearly shows a sunspot in the upper-left portion of the Sun.


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Chelyabinsk exposed: the anatomy of an asteroid impact

Photo of Chelyabinsk meteorite fragment

Exhibit A: a 4 cm-wide meteorite created by the Chelyabinsk asteroid explosion with “shock veins” in it. (Courtesy: Science/AAAS)

By Matin Durrani

If there is one thing that will be remembered about Friday 15 February 2013, it’s that it was the day when a massive asteroid blew up above the city of Chelyabinsk in Russia – creating the largest explosion on the planet since the one that occurred over the Tunguska river in Siberia in 1908.

But whereas hardly anyone saw or recorded information about the Tunguska explosion, the Chelyabinsk asteroid blew up over a relatively densely populated region and – perhaps more importantly – its journey through the air was recorded by numerous cameras and webcams that nervous Russian drivers love to install on their cars. Video footage of the event was soon seen by people all over the world.

Now, based on data from those videos and visits to some 50 local villages, researchers from the Czech Republic and Canada have published a paper in the journal Science detailing the trajectory, structure and origin of what they call the “Chelyabinsk asteroidal impactor”. The paper goes live on Thursday 7 November.

To save you the trouble of reading the full article, I’ve picked out a couple of factoids that might intrigue and interest you.


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