1 billion years ago, a meteorite struck Scotland and influenced life on Earth

By Chris Kirkland, Professor of Geochronology, Curtin University
Timmons Erickson, Visting Research Associate, School of Earth and Planetary Sciences, Curtin University
Tony Prave, Emeritus Professor, School of Earth and Environmental Sciences, University of St Andrews

We’ve discovered that a meteorite struck northwest Scotland 1 billion years ago, 200 million years later than previously thought. Our results are published today in the journal Geology.

This impact now aligns with some of Earth’s earliest known, land based, non-marine microbial fossils, and offers new insights into how meteorite strikes may have shaped our planet’s environment and life.

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1 billion years ago, a meteorite struck Scotland and influenced life on Earth

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© The Conversation - Monday, April 28, 2025