Diamonds in Meteorite May Hail from Our Ancient Solar System

An artist's concept of a protoplanetary disc

However, a diamond with inclusions is far more valuable from a scientific standpoint than a so-called flawless jewel.

On October 7, 2008, an 80-ton asteroid (2008 TC3) entered the Earth's atmosphere and exploded into hundreds of smaller meteorites about 23 miles above the Nubian Desert in Sudan. According to a 2015 study, however, the diamonds in Almahata Sitta are much, much larger and were likely not produced by shock waves.

In the space rocks, which are also called meteorites, researchers found compounds common to diamonds on Earth, such as chromite, phosphate and iron-nickel sulfides. The study shows us that the ureilite parent body was once a largely lost planet which was destroyed by collisions.

"That is pretty exciting", she added.

To check on that explanation, a group led by Farhang Nabiei of the Swiss Federal Institute of Technology in Lausanne threw the diamonds under a transmission electron microscope. This was the first time that a team of scientists tracked an asteroid that became a meteor. Students from the University of Khartoum recovered more than 600 pieces of the meteorite.

The size of the diamonds is another clue that we're dealing with some very peculiar objects. The diamonds that were found inside the asteroid were extremely tiny and the biggest of them was about the width of a human hair. This particular set of diamonds were formed at 20 gigapascals - the entire weight of its home planet pushing down on it. He plans to seek out similar meteorites and search them for inclusions that might provide clues about their origins.

Those flaws made the diamond extraordinary. First, the researchers' explanation for the graphite breaking up the diamond is that pre-existing diamonds were messed up by a later collision event-probably one that blasted apart the planetary body and freed these diamonds that were deep inside it.

The Almahata Sitta meteorites are mostly ureilites, a rare type of stony meteorite that often contains clusters of nano-sized diamonds.

The researchers took this as evidence that the diamonds actually captured these minerals when they were bound together in a higher-pressure phase, and they have subsequently decomposed into lower-pressure phases within the inclusions. This level of internal pressure can only be explained if the planetary parent body was a Mercury- to Mars-sized planetary "embryo", depending on the layer in which the diamonds were formed.

While there are eight main planets orbiting the solar system, an worldwide team of scientists believes that perhaps there could have been another planet that could have ceased to exist at the time when the planets and the solar system itself were chaotically forming.

Related news:

Hot News

isis-killer-beheading-video-story-top There's growing fear that Tom Brady might retire before Week 1
Apr 19, 2018 - 01:58
Bayless said he's convinced that Brady wants to play three or four more years with the Patriots , but not under Belichick . Let's just be clear about this: Tom Brady is playing in 2018 and there's nothing that will change that.

isis-killer-beheading-video-story-top Aseemanand acquitted in Mecca Masjid blast case. Judge resigns soon after verdict
Apr 19, 2018 - 01:57
Meanwhile, the Special NIA judge, who on Monday delivered the verdict in the 2007 Mecca Masjid blast case , has resigned . Seven years down the line and after examining over 200 witnesses the judge Janardhan Reddy acquitted all the five accused.

isis-killer-beheading-video-story-top Saudi cinema launch ends 40-year ban
Apr 19, 2018 - 01:53
In a moment set to go down in history, a public cinema will open in Saudi Arabia on Wednesday evening, for the first time in 35 years.

isis-killer-beheading-video-story-top Surgery for Manchester City star Aguero
Apr 18, 2018 - 00:43
But he was unable to train in the build-up to the second leg of City's Champions League quarter-final against Liverpool on April 10.

isis-killer-beheading-video-story-top Seven killed during riot at SC prison
Apr 18, 2018 - 00:40
State law enforcement is responding to a situation at Lee Correctional Institution Sunday night. SCDC said the prison was secured at 2:55 a.m. and no staff members or officers were injured.

isis-killer-beheading-video-story-top Stormy Daniels' Sketch Sure Looks Like Her Husband
Apr 18, 2018 - 00:38
Daniels is now suing Trump and Cohen over the nondisclosure agreement she signed in 2016 in exchange for $130,000 in hush money. She'd put herself in a position, Daniels explained, where it seemed like " more trouble to say no" to Trump's alleged advances.

isis-killer-beheading-video-story-top Spring storms dump snow and ice on central U.S. , hampering travel
Apr 18, 2018 - 00:36
In the Midwest, winter isn't going quietly, dropping up to 20 inches of snow in parts of South Dakota, and 19 inches in Wisconsin. This was an incredibly fast moving tornado (moving at 60 mph) with winds estimated at 105 miles per hour , the rating is an EF-1.

isis-killer-beheading-video-story-top Russian Government Asked Google, Apple To Remove Telegram From Stores
Apr 18, 2018 - 00:30
Users reported many online games, mobile apps , and cryptocurrency services going dark over the course of the day. Durov , the Russian tech entrepreneur who founded Telegram, said the effect on Telegram's operations was minimal.

isis-killer-beheading-video-story-top Kentucky governor 'guarantees' children sexually assaulted, poisoned due to school closures
Apr 18, 2018 - 00:23
Following widespread outrage over those remarks , Bevin has issued an apology, stating it wasn't his intent to hurt anyone. But, Jim Carroll, the President of Kentucky Government Retirees, said there was no "confusion" over Bevin's comments.

isis-killer-beheading-video-story-top Younkers and Herberger's liquidation appears likely
Apr 18, 2018 - 00:21
Younkers, which began as a family-run dry goods business in Keokuk, has been an Iowa retailer since 1856. Among those in the Westdale Mall location in Cedar Rapids, that was announced earlier this year .

isis-killer-beheading-video-story-top Alleged serial killer Bruce McArthur hit with 8th murder charge
Apr 18, 2018 - 00:12
Police identified the man Monday as Kirushna Kumar Kanagaratnam, who had arrived in Canada in 2010 and lived in the Toronto area. Last week, McArthur was charged in the death of 42-year-old Abdulbasir Faizi, who disappeared from the gay village in 2010.

isis-killer-beheading-video-story-top Miami Heat: 3 takeaways from Game 2 vs. 76ers
Apr 17, 2018 - 18:49
On the next possession, Wade dished to James Johnson for an easy bucket off a high pick and roll. He pointed out to the Heat's run in the second quarter as moments he coudl have used Embiid.

isis-killer-beheading-video-story-top Trust in Facebook has spectacularly nosedived after its enormous data breach
Apr 17, 2018 - 18:48
Facebook allows its users to adjust their News Feed and ad preferences for a more secure and personal experience. The blog post also reviews the types of controls people with Facebook accounts have over their data.

isis-killer-beheading-video-story-top Here's What Happens to Negan in The Walking Dead Season Finale
Apr 17, 2018 - 18:47
Having her and Rick properly face-off in a battle of egos and philosophies would make for some genuinely engaging television. Her season eight story ends with a confession that Rick was right about saving the Saviors and rebuilding civilization .

isis-killer-beheading-video-story-top Armenia opposition chief urges new protests, strike
Apr 17, 2018 - 18:42
The election of Mr Sargsyan to the presidency in 2008 was met with demonstrations, with protesters alleging vote rigging. Nikol Pashinyan called on friends and relatives of the detainees to block streets and avenues of the capital city.