cosmic ray

From NBC News, May 4, 2022: A new research initiative that includes Fermilab scientist Alan Bross plans to scan Egypt’s Great Pyramid of Giza using energetic particles from space. The new device is a high-powered telescope to map the Great Pyramid’s internal makeup from all angles and could help scientists “see” inside the ancient structure to glean new details about its mysterious inner chambers.

One night in 1939, Professor Pierre Auger’s daughter asked him, “Papa, what are you doing?” In French, of course. “I’m studying the sparkles on the roof,” he said, with a twinkle in his eye. He had discovered that very energetic subatomic particles coming from outer space, cosmic rays, smash into atoms in the upper atmosphere making huge showers of particles that reach the ground.