Dark matter found? Gamma rays at centre of Milky Way promise clue to mystery of universe

‘We may be seeing dark matter for the first time,’ according to astrophysicists

Scientists in Boston have released an image which they say could be the first time dark matter has ever been captured on a Nasa telescope.

The new study of gamma rays captured by the US space agency’s Fermi apparatus picked up a signal which “cannot be explained by other alternatives” – meaning that by process of elimination what we are seeing has a high chance of being the elusive substance.

Dark matter makes up most of the material universe – yet we know very little about what it consists of or how it interacts with everything else.

But by analysing an image of gamma rays coming from the Milky Way, a joint team from Harvard, the University of Chicago and MIT in Boston have been able to pick out a bright core at the centre of our galaxy that is only currently explained by models of dark matter itself.

Experts have speculated for some time that dark matter is most likely to be observed at the centre of the galaxy – large quantities of dark matter attract normal matter, forming a foundation upon which visible structures, such as galaxies, are built.

The team cleared away all gamma rays shown in the original image (left) until what they were left with were rays which can currently only be explained by dark matter The team cleared away all gamma rays shown in the original image (left) until what they were left with were rays which can currently only be explained by dark matter “This is the most compelling signal we've had for dark matter particles – ever,” said Dan Hooper, speaking to New Scientist from the Fermi National Laboratory in Batavia, Illinois.

“At this point, there are no known or proposed astrophysical mechanisms or sources that can account for this emission,” he said. “That doesn't rule out things that no one's thought of yet, but we've tried pretty hard to think of something without success.”

The team took publicly available images of gamma ray light shot out from the Milky Way and, piece by piece, removed every pixel that could be explained by a known phenomenon like a supernova or particles colliding with interstellar gas.

“Our case is very much a process-of-elimination argument. We made a list, scratched off things that didn't work, and ended up with dark matter,” said co-author Douglas Finkbeiner, a professor of astronomy and physics at Harvard.

One possible theory suggests that dark matter is made up of brilliantly named Weakly Interacting Massive Particles – or Wimps – which would collide to produce gamma rays at the energies detected by the Fermi telescope.

Tracy Slatyer, a theoretical physicist at MIT, said: “This is a very exciting signal, and while the case is not yet closed, in the future we might well look back and say this was where we saw dark matter annihilation for the first time.”

Voices
voicesGood for Lana Del Rey for helping kill that myth, writes Grace Dent
Life and Style
fashion Designs are part of feminist art project by a British student
News
The University of California study monitored the reaction of 36 dogs
sciencePets' range of emotions revealed
News
Snoop Dogg pictured at The Hollywood Reporter Nominees' Night in February, 2013
people... says Snoop Dogg
PROMOTED VIDEO
News
i100
Life and Style
food + drinkZebra meat is exotic and lean - but does it taste good?
Arts and Entertainment
Residents of Derby Road in Southampton oppose filming of Channel 4 documentary Immigration Street in their community
tv
Voices
voicesSiobhan Norton on why she eventually changed her mind
Arts and Entertainment
The Tour de France peloton rides over a bridge on the Grinton Moor, Yorkshire, earlier this month
film
News
ebookA unique anthology of reporting and analysis of a crucial period of history
News
i100
Extras
indybest
Sport
Scottish singer Susan Boyle will perform at the Commonwealth Games opening ceremony in Glasgow
commonwealth games
Arts and Entertainment
Dwayne 'The Rock' Johnson stars in Hercules
filmReview: The Rock is a muscular Davy Crockett in this preposterous film, says Geoffrey Macnab
Life and Style
tech
Independent
Travel Shop
the manor
Up to 70% off luxury travel
on city breaks Find out more
santorini
Up to 70% off luxury travel
on chic beach resorts Find out more
sardina foodie
Up to 70% off luxury travel
on country retreats Find out more
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

VB.Net Developer

£35000 - £45000 per annum + competitive: Progressive Recruitment: If you're pa...

SAP Business Consultant (SD, MM and FICO), £55,000, Wakefield

£45000 - £55000 per annum + competitive: Progressive Recruitment: SAP Business...

Java Developer

£40000 - £60000 per annum + competitive: Progressive Recruitment: My client, a...

SAP Functional Consultant (SD, MM and FICO), £45,000 - £55,000.

£45000 - £55000 per annum + Benefits: Progressive Recruitment: SAP Functional ...

Day In a Page

Noel Fielding's 'Luxury Comedy': A land of the outright bizarre

Noel Fielding's 'Luxury Comedy'

A land of the outright bizarre
What are the worst 'Word Crimes'?

What are the worst 'Word Crimes'?

‘Weird Al’ Yankovic's latest video is an ode to good grammar. But what do The Independent’s experts think he’s missed out?
Can Secret Cinema sell 80,000 'Back to the Future' tickets?

The worst kept secret in cinema

A cult movie event aims to immerse audiences of 80,000 in ‘Back to the Future’. But has it lost its magic?
Facebook: The new hatched, matched and dispatched

The new hatched, matched and dispatched

Family events used to be marked in the personal columns. But now Facebook has usurped the ‘Births, Deaths and Marriages’ announcements
Why do we have blood types?

Are you my type?

All of us have one but probably never wondered why. Yet even now, a century after blood types were discovered, it’s a matter of debate what they’re for
Honesty box hotels: You decide how much you pay

Honesty box hotels

Five hotels in Paris now allow guests to pay only what they think their stay was worth. It seems fraught with financial risk, but the honesty policy has its benefit
Commonwealth Games 2014: Why weight of pressure rests easy on Michael Jamieson’s shoulders

Michael Jamieson: Why weight of pressure rests easy on his shoulders

The Scottish swimmer is ready for ‘the biggest race of my life’ at the Commonwealth Games
Some are reformed drug addicts. Some are single mums. All are on benefits. But now these so-called 'scroungers’ are fighting back

The 'scroungers’ fight back

The welfare claimants battling to alter stereotypes
Amazing video shows Nasa 'flame extinguishment experiment' in action

Fireballs in space

Amazing video shows Nasa's 'flame extinguishment experiment' in action
A Bible for billionaires

A Bible for billionaires

Find out why America's richest men are reading John Brookes
Paranoid parenting is on the rise - and our children are suffering because of it

Paranoid parenting is on the rise

And our children are suffering because of it
For sale: Island where the Magna Carta was sealed

Magna Carta Island goes on sale

Yours for a cool £4m
Phone hacking scandal special report: The slide into crime at the 'News of the World'

The hacker's tale: the slide into crime at the 'News of the World'

Glenn Mulcaire was jailed for six months for intercepting phone messages. James Hanning tells his story in a new book. This is an extract
We flinch, but there are degrees of paedophilia

We flinch, but there are degrees of paedophilia

Child abusers are not all the same, yet the idea of treating them differently in relation to the severity of their crimes has somehow become controversial
The truth about conspiracy theories is that some require considering

The truth about conspiracy theories is that some require considering

For instance, did Isis kill the Israeli teenagers to trigger a war, asks Patrick Cockburn