Chelyabinsk asteroid: Explosion 30 times the strength of atomic bomb was caused by collision in deep space

The Chelyabinsk asteroid was the second biggest explosion ever recorded

The asteroid that exploded over the Russian city of Chelyabinsk, leaving more than one thousand people injured, was redirected towards earth after colliding with another asteroid.

Research by the University of Tohoku in Japan and Novosibirsk University in Russia said that the Chelyabinsk asteroid was likely to have been a part of a larger asteroid but had been separated from its celestial body after a 3,000 mph collision occurred in deep space nearly 10 million years ago.

"This impact might have separated the Chelyabinsk asteroid from its parent body and delivered it to the Earth," wrote researcher Shin Ozawa of the University Tohoku in a paper published this week in the journal Scientific Reports.

The Chelyabinsk asteroid which exploded last February, became the second most powerful explosion in recorded history and was said to have a force 30 times larger than that of Hiroshima.

Travelling at almost 60 times the speed of sound, most of the asteroid was incinerated on entering the Earth’s atmosphere creating a massive fireball that could be seen from Earth.

Despite disintegrating thousands of miles away from the Earth’s surface the explosion of the asteroid still caused destruction in Chelyabinsk and the surrounding areas,  with over 1,500 people needing medical attention and 7,200 buildings being damaged.

The report said that they had found “clear evidence for an intense impact event.”

The conclusion came after fragments of the asteroid were analysed by scientists and it was found that the fragments from the asteroid contained the mineral jadeite – a mineral only found in asteroids that are put under extreme pressure and temperatures.

The jadeite was found inside glassy substances known as shock veins which can only be formed if a rock crashes, melts and solidifies.

The findings by the researchers mark a breakthrough in the understanding of how asteroids are created and it is hoped that further analysis of the recovered rocks may give astrologists a greater understanding of how asteroids enter the earth’s atmosphere.

The study said: “Chelyabinsk meteorite is a unique sample: it is fragments of a Near-Earth Object that actually hit the Earth and its trajectory was well-recorded.”

Start your day with The Independent, sign up for daily news emails
News
people
News
Ed Miliband received a warm welcome in Chester
election 2015
Life and Style
Apple CEO Tim Cook announces the Apple Watch during an Apple special even
fashionIs the iWatch for you? Well, it depends if you want for the fitness tech, or the style
News
Astronauts could be kept asleep for days or even weeks
scienceScientists are looking for a way to keep astronauts in a sleeplike state for days or weeks
ebooks
ebooksA special investigation by Andy McSmith
  • Get to the point
Latest stories from i100
Have you tried new the Independent Digital Edition apps?
Independent Dating
and  

By clicking 'Search' you
are agreeing to our
Terms of Use.

iJobs Job Widget
iJobs General

Recruitment Genius: Project Implementation Executive

£18000 - £23000 per annum: Recruitment Genius: They work with major vehicle ma...

Recruitment Genius: Chiropractic Assistant

£16500 per annum: Recruitment Genius: A Chiropractic Assistant is needed in a ...

Recruitment Genius: Digital Account Executive - Midlands

£18000 - £26000 per annum: Recruitment Genius: They work with major vehicle ma...

Recruitment Genius: Web Developer

£28000 - £30000 per annum: Recruitment Genius: This company provides coaching ...

Day In a Page

NHS struggling to monitor the safety and efficacy of its services outsourced to private providers

Who's monitoring the outsourced NHS services?

A report finds that private firms are not being properly assessed for their quality of care
Zac Goldsmith: 'I'll trigger a by-election over Heathrow'

Zac Goldsmith: 'I'll trigger a by-election over Heathrow'

The Tory MP said he did not want to stand again unless his party's manifesto ruled out a third runway. But he's doing so. Watch this space
How do Greek voters feel about Syriza's backtracking on its anti-austerity pledge?

How do Greeks feel about Syriza?

Five voters from different backgrounds tell us what they expect from Syriza's charismatic leader Alexis Tsipras
From Iraq to Libya and Syria: The wars that come back to haunt us

The wars that come back to haunt us

David Cameron should not escape blame for his role in conflicts that are still raging, argues Patrick Cockburn
Sam Baker and Lauren Laverne: Too busy to surf? Head to The Pool

Too busy to surf? Head to The Pool

A new website is trying to declutter the internet to help busy women. Holly Williams meets the founders
Heston Blumenthal to cook up a spice odyssey for British astronaut manning the International Space Station

UK's Major Tum to blast off on a spice odyssey

Nothing but the best for British astronaut as chef Heston Blumenthal cooks up his rations
John Harrison's 'longitude' clock sets new record - 300 years on

‘Longitude’ clock sets new record - 300 years on

Greenwich horologists celebrate as it keeps to within a second of real time over a 100-day test
Fears in the US of being outgunned in the vital propaganda wars by Russia, China - and even Isis - have prompted a rethink on overseas broadcasters

Let the propaganda wars begin - again

'Accurate, objective, comprehensive': that was Voice of America's creed, but now its masters want it to promote US policy, reports Rupert Cornwell
Why Japan's incredible long-distance runners will never win the London Marathon

Japan's incredible long-distance runners

Every year, Japanese long-distance runners post some of the world's fastest times – yet, come next weekend, not a single elite competitor from the country will be at the London Marathon
Why does Tom Drury remain the greatest writer you've never heard of?

Tom Drury: The quiet American

His debut was considered one of the finest novels of the past 50 years, and he is every bit the equal of his contemporaries, Jonathan Franzen, Dave Eggers and David Foster Wallace
You should judge a person by how they peel a potato

You should judge a person by how they peel a potato

Dave Hax's domestic tips are reminiscent of George Orwell's tea routine. The world might need revolution, but we like to sweat the small stuff, says DJ Taylor
Beige is back: The drab car colours of the 1970s are proving popular again

Beige to the future

Flares and flounce are back on catwalks but a revival in ’70s car paintjobs was a stack-heeled step too far – until now
Bill Granger recipes: Our chef's dishes highlight the delicate essence of fresh cheeses

Bill Granger cooks with fresh cheeses

More delicate on the palate, milder, fresh cheeses can also be kinder to the waistline
Aston Villa vs Liverpool: 'This FA Cup run has been wonderful,' says veteran Shay Given

Shay Given: 'This FA Cup run has been wonderful'

The Villa keeper has been overlooked for a long time and has unhappy memories of the national stadium – but he is savouring his chance to play at Wembley
Timeless drama of Championship race in league of its own - Michael Calvin

Michael Calvin's Last Word

Timeless drama of Championship race in league of its own