4.6-Billion-Year-Old Meteorite Found In The Sahara Desert Is Older Than Earth Itself


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The EC 002 meteorite is the oldest-known volcanic rock ever found (Credit: Maine Mineral and Gem Museum/Darryl Pitt)

An ancient volcanic space rock found in the Algerian Sahara Desert, may provide scientists with insights into the building blocks of planets. Dubbed Erg Chech 002, or EC 002, the meteorite is believed to be a remnant of a protoplanet dating back 4.6 billion years — about the time when our solar system was being formed.

The coarse-grained brown space rock, which is studded with green, yellow-green, and yellow-brown crystals, was found by meteor hunters in Adrar, Algeria, in May 2020. Unlike previously found meteorites, which comprise a kind of volcanic rock called basalt, Erg Chech 002 is composed of andesite. Though common in the Earth's subduction zones — the areas where tectonic plates have collided and one has been pushed beneath the other — andesite has rarely been seen in meteorites.

“I have been working on meteorites for more than 20 years now, and this is possibly the most fantastic new meteorite I have ever seen,” says Jean-Alix Barrat, a geochemist at the University of West Brittany, who led the study.

The coarse-grained meteorite is studded with green, yellow-green, and yellow-brown crystals (Credit: Maine Mineral and Gem Museum/Darryl Pitt)

The researchers, who published their findings in the journal PNAS on March 16, 2021, believe the fragment was probably part of the crust of an ancient protoplanet — a large, rocky body in the process of developing into a planet. They speculate that the baby planet got destroyed, or was devoured, by a bigger planet during our solar system's formation. "This meteorite is the oldest magmatic rock analyzed to date and sheds light on the formation of the primordial crusts that covered the oldest protoplanets," Barrat and his team reported.

Since no known asteroid resembles EC 002, the researchers suspect that no other remnants are left from these early times. They either fused to form other planets or were destroyed. “When you go close to the beginning of the solar system, it’s more and more complicated to get samples,” says Barrat. “We probably will not find another sample older than this one.”

Resources: Newscientist.com, livescience.com, phys.com

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  • danny-boy
    danny-boyMonday, April 12, 2021 at 8:41 am
    It is so E P I C !!! I love space and space objects
    • minecraft2345
      minecraft2345Monday, April 12, 2021 at 8:41 am
      • danny-boy
        danny-boyMonday, April 12, 2021 at 8:40 am
        This is, "out of this world"😆😄😋😜 literally and metaphorically!
        • ballerina18
          ballerina18Sunday, April 11, 2021 at 9:01 am
          WOW! It woulda been real exciting if I could see it, like actually,physically! If I could rate the coolness, it woulda be bound 5+!!!😲
          • imwiththegforce
            imwiththegforceSaturday, April 10, 2021 at 2:17 pm
            To be honest it doesn't look to different from just your average strange looking rock. I wonder why someone had the idea to bring it to the lab after they found it....
            • eri_chan10
              eri_chan10Friday, April 9, 2021 at 1:25 pm
              • school_account
                school_accountFriday, April 9, 2021 at 12:13 pm
                huh my teach will be surprised
                • brandonl2860
                  brandonl2860Friday, April 9, 2021 at 11:32 am
                  • komudapi-159905685760
                    komudapi-159905685760Friday, April 9, 2021 at 9:22 am
                    It's really cool that this meteor is older than the earth! I wonder what planet it would have been if the baby planet wouldn't have gotten destroyed.
                    • thebestpro
                      thebestproFriday, April 9, 2021 at 6:55 am
                      That is SOO stooky how it is older than the Earth itself! I wonder what planet it came from, maybe even another galaxy