The astonishingly bright signal – dubbed the ‘BOAT’, or brightest of all time – was found in October 2022. It was more than 10 times more powerful than any such gamma-ray burst or GRB ...

However, this GRB, dubbed GRB 221009A, was deemed so exceptional that astronomers said it was the brightest of all time (Boat) since the beginning of human civilisation. Now an international team ...