Rare carbonaceous chondrite meteorite recovered in New Jersey contains prebiotic compounds
Scientists analyzing fragments of a July 2024 meteorite that hit a New Jersey home identified salty brine residues and organic molecules, suggesting such asteroids could have delivered life-building chemicals to early Earth.
An international research team has confirmed that a meteorite which struck a New Jersey residence in July 2024 is a CM1/2 carbonaceous chondrite, a rare and primitive type of asteroid material. The homeowner preserved the fragments in glass jars, enabling detailed forensic analysis published in Science Advances.
The study found that the meteorite’s parent body was coated in concentrated salty fluids, or brine, a condition not previously observed on this class of meteorite. Researchers said the high salt content could have facilitated the formation of molecules essential to life, such as phosphate-bearing compounds.
Chemical analysis also revealed soluble organic substances, including magnesium-based compounds and amino acids, which may have formed within the brine or resulted from earlier impacts on the parent asteroid. Cosmochemist Queenie Chan noted that such organic matter could have been delivered to the early Earth by similar carbonaceous chondrites.
Some of the studied fragments are slated for display at the American Museum of Natural History, where curator Denton Ebel remarked, "We are thrilled that nature delivered such a precious asteroid sample on our doorstep."
The findings add to evidence that extraterrestrial bodies may have contributed key ingredients for the emergence of life on our planet.