From historic naked-eye flares to modern instrument-detected blasts, this post ranks the 10 Most Catastrophic Supernovas Ever Observed. Each entry summarizes date, type, energy output, observed effects, and scientific impact, with links to in-depth case studies, images, and expert analysis.
Explore 10 cosmic events that typically recur on roughly 100-year timescales — from long-returning comets and century meteor outbursts to rare solar and planetary cycles. This hub post summarizes each event and links to detailed guides so you can learn what they are, when they happen, and how to observe them.
