A meteorite that struck a residence has been discovered to contain extraterrestrial “salty” fluids that may harbor the fundamental components of life.
Scientists suggest that the unique chemistry from an “alien world” within the space rock could potentially lead to the creation of essential life-building molecules on Earth. The meteor caused a sonic boom as it passed by the Statue of Liberty in New York City on July 16, 2024.
Shortly after, the 2lb meteorite crashed through a house roof in Hillsborough, New Jersey. Dr. Peter Jenniskens, the lead author from the SETI Institute, noted that a forensic examination of the fragments indicated they harbored preserved material from the surface of a primitive asteroid where concentrated salty fluids were present, a phenomenon not previously documented in this type of proto planet.
The meteor, equivalent in size to a heavy airline bag, entered Earth’s atmosphere at a velocity of 32,000 miles per hour. Mike Hankey, the American Meteor Society operations manager, mentioned that cameras in different locations captured the meteor’s trajectory, tracing it back to the lower asteroid belt. The rock was fragile and fragmented quickly upon impact.
The meteor became invisible at an altitude of 22 miles. Subsequently, a Doppler weather radar at Newark Airport briefly detected a long cloud of falling pebbles extending from Staten Island to New Jersey.
Hillsborough was situated at the far end of this cloud and experienced the heaviest rock falls. Only one meteorite fragment was recovered due to its impact on a residence. The homeowner described hearing a loud crash, finding a hole in the bedroom ceiling, and noticing a strong sulfur-like smell along with black fragments and debris.
After promptly preserving and documenting the scene, scientists identified the rocks as belonging to the CM-type carbonaceous chondrites, specifically the Mighei meteorite that fell in Ukraine in 1889. Dr. Jenniskens emphasized that due to the homeowner’s quick response, these are the most pristine CM1/2 meteorites known.
Further analysis revealed small salt-rich CM1 fragments within the meteorite, indicating their origin from a near-surface region of the parent asteroid where liquid water evaporated and concentrated salts. The research team is now focused on identifying the salt minerals for comparison with samples from other asteroids, as high salt concentrations in briny fluids could play a crucial role in creating essential life molecules on Earth.
Experts highlighted that brines could facilitate chemical reactions between organic materials and precipitate minerals, potentially contributing to the organic matter delivery to early Earth. The rich organic content in the Hillsborough meteorite, including soluble organic compounds and amino acids, suggests a significant role in prebiotic organic inventory that preceded life emergence on Earth.
A selection of the meteorite fragments will be showcased at the American Museum of Natural History in New York City. Curator Denton Ebel expressed excitement over the precious asteroid sample delivered by nature at their doorstep.
