'Black Beauty' rock is a 2 billion year old unique 'meteorite' from Mars, say scientists

Coal-coloured rock estimated to be 2 billion years old, and contains more water than most of the red-planet meteorites so far discovered

A coal-coloured rock discovered in the Sahara desert is a new type of Martian meteorite scientists have said.

Scientists have been analysing the meteorite for two years and the results of the study indicate it is different from other Martian rocks that have been discovered.

It is estimated to be 2 billion years old, and contains more water than most of the red-planet meteorites so far discovered.

The stone weighs 320g and has been given the formal name Northwest Africa (NWA) 7034 - but is nicknamed "Black Beauty".

A report in Science magazine says the rock shares characteristics with known martian meteorites, but also has some unique characteristics, namely its chemical composition and its age.

There's also evidence that it was altered by water.

Though the amount released during heating was small — 6,000 parts per million — it was still much more than other Martian meteorites.

Scientists said this suggested there was interaction with water near the surface during a time when the planet was mostly dry and dusty.

At 2.1 billion years old, it's the second-oldest known Martian meteorite that formed from a volcanic eruption.

"Here we have a piece of Mars that I can hold in my hands. That's really exciting," said Carl Agee, director of the Institute of Meteoritics and curator at the University of New Mexico who led the study published online yesterday in the journal Science.

There are thought to be 100 Martian meteorites in collections worldwide, most of which were discovered in Antarctica or the Sahara.

The oldest dates back 4.5 billion years to a time when Mars was warmer and wetter. About half a dozen Martian meteorites are 1.3 billion years old and the rest are 600 million years or young.

Scientists believe that an asteroid, or some other large object hit Mars dislodging rocks and launching them into space.

Most space rocks that fall to Earth as meteorites come from the asteroid belt, but a number can be traced to the moon and Mars.

Meteorite hunters trade rare rocks, which are often discovered purely by chance, for tens of thousands of dollars.

'Black Beauty' was donated to the University of New Mexico by an American who bought it from a Moroccan meteorite dealer last year.

Chris Herd, a University of Alberta meteorite expert, said the find was welcome since most Martian rocks that rain on Earth tend to be younger. And the latest find does not appear to be too contaminated, he said.

"It's fairly fresh. It hasn't been subjected to a whole lot of weathering," said Herd, who had no role in the research.

PROMOTED VIDEO
Arts and Entertainment
Sheeran arrives at the 56th annual Grammy Awards earlier this year
musicYes, that would be Ed Sheeran, according to the BBC
Arts and Entertainment
AKB48 perform during one of their daily concerts at Tokyo’s Akihabara theatre
musicJapan's AKB48 are one of the world’s most-successful pop acts
News
Ian Thorpe has thanked his supporters after the athlete said in an interview that he is gay
people
News
The headstone of jazz great Miles Davis at Woodlawn Cemetery in New York
news
Arts and Entertainment
Brendan O'Carroll has brought out his female alter-ego Agnes Brown for Mrs Brown's Boys D'Movie
filmComedy holds its place at top of the UK box office
News
newsBear sweltering in zoo that reaches temperatures of 40 degrees
Arts and Entertainment
Professor Kathy Willis will showcase plants from the Royal Botanic Gardens at Kew
radioPlants: From Roots to Riches has been two years in the making
News
ebookA unique anthology of reporting and analysis of a crucial period of history
Arts and Entertainment
TV The follow-up documentary that has got locals worried
Arts and Entertainment
Eminem's daughter Hailie has graduated from high school
music
Arts and Entertainment
Original Netflix series such as Orange Is The New Black are to benefit from a 'substantial' increase in investment
TVHoax announcement had caused outrage
Life and Style
Swimsuit, £245, by Agent Provocateur
fashion

Diving in at the deep end is no excuse for shirking the style stakes

News
One Direction star Harry Styles who says he has no plans to follow his pal Cara Delevingne down the catwalk.
peopleManagement confirms rumours singer is going it alone are false
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
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

Dynamics CRM Developer (C#, .NET, Dynamics CRM 2011/2013)

£40000 - £60000 per annum + Benefits + Bonus: Harrington Starr: Dynamics CRM D...

Web Developer (C#, ASP.NET, AJAX, JavaScript, MVC, HTML)

£40000 - £45000 per annum + Benefits + Bonus: Harrington Starr: Web Developer ...

C# R&D .NET Developer-Algorithms, WCF, WPF, Agile, ASP.NET,MVC

£50000 - £67000 per annum + Benefits + Bonus: Harrington Starr: C# R&D .NE...

C# Developer (Web, HTML5, CSS3, ASP.NET, JS, Visual Studios)

£40000 - £50000 per annum + Benefits + Bonus: Harrington Starr: C# Developer (...

Day In a Page

Super Mario crushes the Messi dream as Germany win the 2014 World Cup in Brazil

Super Mario crushes the Messi dream

Germany win the 2014 World Cup in Brazil
Saharan remains may be evidence of the first race war, 13,000 years ago

The first race war, 13,000 years ago?

Saharan remains may be evidence of oldest large-scale armed conflict
Scientists find early warning system for Alzheimer’s

Scientists find early warning system for Alzheimer’s

Researchers hope eye tests can spot ‘biomarkers’ of the disease
Sex, controversy and schoolgirl schtick

Meet Japan's AKB48

Pop, sex and schoolgirl schtick make for controversial success
Iraq crisis: How Saudi Arabia helped Isis take over the north of the country

How Saudi Arabia helped Isis take over northern Iraq

A speech by an ex-MI6 boss hints at a plan going back over a decade. In some areas, being Shia is akin to being a Jew in Nazi Germany, says Patrick Cockburn
The evolution of Andy Serkis: First Gollum, then King Kong - now the actor is swinging through the trees in Dawn of the Planet of the Apes

The evolution of Andy Serkis

First Gollum, then King Kong - now the actor is swinging through the trees in Dawn of the Planet of the Apes
You thought 'Benefits Street' was controversial: Follow-up documentary 'Immigrant Street' has got locals worried

You thought 'Benefits Street' was controversial...

Follow-up documentary 'Immigrant Street' has got locals worried
Refugee children from Central America let down by Washington's high ideals

Refugee children let down by Washington's high ideals

Democrats and Republicans refuse to set aside their differences to cope with the influx of desperate Central Americas, says Rupert Cornwell
Children's books are too white, says Laureate

Children's books are too white, says Laureate

Malorie Blackman appeals for a better ethnic mix of authors and characters and the illustrator Quentin Blake comes to the rescue
Blackest is the new black: Scientists have developed a material so dark that you can't see it...

Blackest is the new black

Scientists have developed a material so dark that you can't see it...
Matthew Barzun: America's diplomatic dude

Matthew Barzun: America's diplomatic dude

The US Ambassador to London holds 'jeans and beer' gigs at his official residence – it's all part of the job, he tells Chris Green
Meet the Quantified Selfers: From heart rates to happiness, there is little this fast-growing, self-tracking community won't monitor

Meet the 'Quantified Selfers'

From heart rates to happiness, there is little this fast-growing, self-tracking community won't monitor
Madani Younis: Five-star reviews are just the opening act for British theatre's first non-white artistic director

Five-star reviews are just the opening act for British theatre's first non-white artistic director

Madani Younis wants the neighbourhood to follow his work as closely as his audiences do
Mrs Brown and her boys: are they having a laugh?

Mrs Brown and her boys: are they having a laugh?

When it comes to national stereotyping, the Irish – among others – know it can pay to play up to outsiders' expectations, says DJ Taylor