Microbes found living on 2-billion-year-old rock
Scientists have made a groundbreaking discovery, finding living microbes within a 2-billion-year-old rock. This ancient rock, excavated from the Bushveld Igneous Complex (BIC) in South Africa, represents the oldest evidence of living microbes ever found in ancient rock. The Bushveld Igneous Complex, a vast geological structure formed from slowly cooled magma, is known for its rich ore deposits, including 70% of the world’s mined platinum. Now, it’s also become the site of one of the most remarkable discoveries in microbiology and geology.
A research team led by Yohey Suzuki from the University of Tokyo conducted the study, using advanced imaging techniques to confirm the microbes’ authenticity. By employing infrared spectroscopy, electron microscopy, and fluorescent microscopy, they verified that the microorganisms were indigenous to the rock sample and not the result of contamination during excavation. The study builds on the team’s previous work in developing methods to ensure the microbes’ origin could be traced back to the ancient rock itself.
This finding opens up new avenues for understanding the early evolution of life on Earth. “We didn’t know if 2-billion-year-old rocks were habitable,” Suzuki explained. Until now, the oldest known geological layer containing living microorganisms was only 100 million years old, buried beneath the ocean floor. These ancient microbes, trapped within cracks in the rock and surrounded by clay, have been isolated from the outside world, providing a unique glimpse into life from Earth’s distant past.
The discovery also holds implications for the search for extraterrestrial life. With NASA’s Perseverance Rover currently exploring Mars and set to return rock samples from the Red Planet, the possibility of finding ancient microbes in Martian rocks similar in age to those in this study is tantalizing. If Earth’s ancient rocks can harbor life, perhaps Mars’s rocks could too, making this research a critical step in future astrobiological studies.
Stay tuned to EyeOnLondon for the latest news and expert opinions.
Follow us on Facebook, Instagram, X, and LinkedIn for more updates!
Subscribe to our YouTube channel for the latest videos and updates!
