In 2017, scientists pointed cosmic rays at the Great Pyramid of Giza. They found something that shouldn't exist. A void. 100 feet long, roughly the size of a passenger plane. Sitting directly above the Grand Gallery, one of the most explored passages in the pyramid. But this chamber has no doors. No tunnels. No way in. The Egyptians built it 4,500 years ago. Then they sealed it. And they never told anyone what was inside. We've explored this pyramid for centuries. Archaeologists, treasure hunter

What do cosmic particles sound like? 🤔 Physicist Dr David Mahon (University of Glasgow) has teamed up with musician and artist Lomond Campbell to turn invisible muons into music. 🎶 With support from the IOP Scotland committee and the Public Engagement Scheme, they’ve created the Muonophone – a one-of-a-kind instrument that transforms passing muon particles into beautiful sound. The committee were particularly taken with the creativity of this project in beautifully highlighting the wonders of