Cool find! They spent the entire summer trying to locate it in the lake sediments and pulled it out.
Divers working at a Russian lake have recovered a half-tonne chunk of the space rock that exploded over Chelyabinsk earlier this year.
The object plunged into Lake Chebarkul in central Russia on 15 February, leaving a 6m-wide hole in the ice.
Live footage showed a team pull out a 1.5-metre-long (five-foot-long) rock from the lake after first wrapping it in a special covering and placing it on a metal sheet while it was still underwater.
Dr Caroline Smith, curator of meteorites at London’s Natural History Museum, confirmed that the object was a meteorite from characteristic features known as fusion crust and regmaglypts, which are obvious in images.
Sergey Zamozdra, an associate professor at Chelyabinsk State University, told the Interfax news agency: “The preliminary examination… shows that this is really a fraction of the Chelyabinsk meteorite.
“This chunk is most probably one of the top 10 biggest meteorite fragments ever found.
Originally the meteorite was 17 meters long and weighed 10,000 tons when it entered the atmosphere over central Russia. Its impact injured over 1,000 people, rocked buildings and broke windows.
The 1.5 meter long piece the divers pulled out broke into 3 smaller pieces when it was lifted up to be placed on the scale. And then the scale broke at the 570kg mark. (1,255 lbs)
There’s a news report video on the story in the link above. (We couldn’t embed it here)