Telescope Upgrade Reveals Sun’s ‘Coronal Rain’ in Unprecedented Detail
gizmodo.comPublished: 5/27/2025
Summary
Scientists have made a groundbreaking discovery by leveraging an advanced adaptive optics system called "Cona," which has enabled them to capture ultra-sharp images of the Sun's corona for the first time. This innovation adjusts a mirror 2,200 times per second, overcoming a century-long challenge and revealing intricate details like solar prominences, spicules, and coronal rain with unprecedented clarity—down to features as small as 39 miles (63 kilometers). This breakthrough significantly enhances our understanding of the Sun's extreme temperature and holds promise for unlocking deeper mysteries in solar physics.