A telescope in Tibet consisting of plastic detectors and underground water vat observed the highest-energy light yet – and it came from one of the most famous light sources in the sky.
Scientists just made a huge announcement: Telescopes around the world recorded a source of mysterious, ultra-high-energy cosmic rays, the highest-energy particles that hit the Earth. It all started with a text message.
Not to scare you, but you’re getting hit with radiation constantly. First, there’s just regular old light (yep, that’s a kind of radiation). Then there are low levels of higher energy radiation such as the kind in nuclear reactors, including particles coming out of the soil and off of bananas….