Scientists discover cause of brightest-ever burst

Scientists have discovered the cause of the brightest burst of light ever recorded – but discovered two even bigger mysteries in the process. The burst of light, spotted in 2022, is now known to have had an exploding star at its heart, researchers say. But that explosion, by itself, would not have been enough to have shone so brightly, and the discovery casts doubt on where heavy elements – like gold – come from.