CAST (CERN Axion Solar Telescope)

The CERN Axion Solar Telescope (CAST) is a scientific instrument designed to search for hypothetical particles called axions, which are potential components of dark matter. CAST uses a strong magnet, originally from a particle accelerator, pointed at the Sun to detect axions that might be produced there. If axions exist, they could convert into X-ray photons when they pass through the magnetic field. By observing these X-rays, scientists aim to identify signs of axions, helping to unlock mysteries about the universe's unseen matter and fundamental physics.