A 20-Million-Year-Old Meteorite Crashes into Home, Preceding Earth in Age
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A meteorite that pierced through a home near Atlanta this summer has been estimated to be over 4.5 billion years old, older than Earth itself, according to geologists from the University of Georgia. The space rock has been named the McDonough Meteorite, after the city in Henry County where it landed on June 26. Scott Harris, a researcher from the UGA Geology Department, mentioned in a recent news release on Aug. 8 that in order to fully comprehend the meteorite’s journey, scientists must analyse the rock and determine its asteroid group.
Meteorites often enter the atmosphere at speeds faster than sound, with the Earth’s atmosphere aid in slowing them down. But even with this deceleration, the impact can be significant. The McDonough Meteorite, as it landed, created a sound similar to a “close-range gunshot” as it crashed through a roof, HVAC duct, and left a dent in the floor of a man’s house. Amidst the debris, traces of space dust were found in the living room. The homeowner likely experienced a simultaneous collision with the roof, a sonic boom, and the impact on the floor.
University researchers have been allocated 23 grams of the 50-gram meteorite found in the house for further analysis. This space rock, identified as a low-metal ordinary chondrite, is believed to have formed around 4.56 billion years ago. In contrast, Earth’s age is approximately 4.54 billion years, making the meteorite roughly 20 million years older. The McDonough Meteorite is categorised as part of a group of asteroids located in the main asteroid belt between Mars and Jupiter, linked to the breakup of a larger asteroid around 470 million years ago.
This meteorite marks the 27th to be recovered in the history of Georgia, hinting at an increase in meteorite findings aided by modern technology and public awareness. Harris highlighted the potential for more discoveries with technology advancements and public vigilance. The McDonough Meteorite offers researchers a valuable opportunity to delve into the history and formation of celestial bodies and their interactions with Earth.
As the fascination with space continues to grow among enthusiasts and scientists, discoveries like the McDonough Meteorite provide valuable insights into the vast universe and its connection to our planet. The age and composition of this space rock open doors to unraveling mysteries of the cosmos, offering a glimpse into the ancient past of our solar system. With ongoing research and exploration, the secrets hidden within meteorites like the McDonough Meteorite may hold the key to understanding the origins of our solar system and the Earth itself.