High-temperature Melted Spherule (Prof Sean Matt, Tom Wilson, Dr Chris Brunt, University of Exeter – Astrophysics)

“A High-temperature Melted Spherule, produced when the meteorite that formed Barringer Crater impacted with the Earth throwing molten metal across the landscape which cooled to form these microscopic spheres. This Spherule was found by Prof Sean Matt and imaged using an electron microscope.”

– phenomenal image, and fascinating how well-formed these tiny spheres are – they’re around 0.4mm in diameter! The Barringer crater that they originate from is around 50,000 years old and 1.2km across, in Arizona USA.