Feeds

COMET DIAMONDS from SPACE found in Libya's glass desert

First ever find of cometary stuff on Earth

Secure remote control for conventional and virtual desktops

A team of scientists from the University of the Witwatersrand have discovered the first evidence of a comet's impact on Earth – a small black pebble filled with diamonds.

comet

Frying tonight...

"Comets always visit our skies – they're these dirty snowballs of ice mixed with dust – but never before in history has material from a comet ever been found on Earth," said Professor David Block of Wits University.

"Comets contain the very secrets to unlocking the formation of our solar system and this discovery gives us an unprecedented opportunity to study comet material first hand."

The pebble was found in an area of fused glass, the Libyan Desert Glass area spread over around 6,000 square kilometers, and attracted the eye of a geologist because of its unusual features and the lack of any corresponding rock formations. A laboratory analysis showed the rock was very unusual indeed.

While the bulk of the pebble's material is carboniferous, with a few silicates mixed in, the scientists found that interspersed with the material of millions of tiny diamonds. These are usually found on Earth in rocks that have been subjected to very high pressures, but the scientists posit that the same materials could be generated in an exploding comet.

According to the paper published in Earth and Planetary Science Letters, around 28 million years ago a comet entered the Earth's atmosphere over Egypt and then exploded. The pressure of the explosion formed the diamonds in the pebble and the resulting heatwave created the Libyan Desert Glass.

Tutankhamen necklace

The central scarab in Tutankhamen necklace is the result of the comet's impact

The glass itself has been valued by humans since the Pleistocene era and is featured in jewelry owned by the late boy-king of Egypt Tutankhamen. Geologists had thought that the glass was formed by a meteorite impact but the new evidence suggests a comet is to blame, and the evidence could also save space agencies a few pennies.

"NASA and ESA (European Space Agency) spend billions of dollars collecting a few micrograms of comet material and bringing it back to Earth, and now we've got a radical new approach of studying this material, without spending billions of dollars collecting it," said the paper's author Jan Kramers.

Many comets are thought to have slammed into Earth's atmosphere – the 1908 Tunguska Event is widely assumed to be a comet that also exploded in an air-burst. But the pebble, called "Hypatia" after the first recorded female mathematician Hypatia of Alexandria, is the first direct proof of such extraterrestrial material raining down on Earth. ®

Next gen security for virtualised datacentres

More from The Register

next story
Gigantic toothless 'DRAGONS' dominated Earth's early skies
Gummy pterosaurs outlived toothy competitors
Vulture 2 takes a battering in 100km/h test run
Still in one piece, but we're going to need MORE POWER
TRIANGULAR orbits will help Rosetta to get up close with Comet 67P
Probe will be just 10km from Space Duck in October
Boffins ID freakish spine-smothered prehistoric critter: The CLAW gave it away
Bizarre-looking creature actually related to velvet worms
CRR-CRRRK, beep, beep: Mars space truck backs out of slippery sand trap
Curiosity finds new drilling target after course correction
'Leccy racer whacks petrols in Oz race
ELMOFO rakes in two wins in sanctioned race
What does a flashmob of 1,024 robots look like? Just like this
Sorry, Harvard, did you say kilobots or KILLER BOTS?
NASA's rock'n'roll shock: ROLLING STONE FOUND ON MARS
No sign of Ziggy Stardust and his band
Why your mum was WRONG about whiffy tattooed people
They're a future source of RENEWABLE ENERGY
prev story

Whitepapers

5 things you didn’t know about cloud backup
IT departments are embracing cloud backup, but there’s a lot you need to know before choosing a service provider. Learn all the critical things you need to know.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Build a business case: developing custom apps
Learn how to maximize the value of custom applications by accelerating and simplifying their development.
Rethinking backup and recovery in the modern data center
Combining intelligence, operational analytics, and automation to enable efficient, data-driven IT organizations using the HP ABR approach.
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.