An explosion of cosmic gamma rays with Earth could be detrimental to ocean plankton at depths of up to 80 m, according to a team of Cuban researchers. These organisms represent up to 40% of the ocean’s photosynthesis, and if such an event occurs, it could have a serious impact on the Earth’s carbon dioxide levels.
Gamma-ray burst or bursts (GRBs in English) are the brightest electromagnetic events known in the universe.
These gamma-ray bursts, are caused by the collapse of a massive star at the end of its life which begins a rapid rotation. a black hole forming during the death of the massive star produced these gamma rays that carry the power of billions of nuclear bombs
NASA - Chandra confirms gamma-ray burst and supernova connection - Marshall Space Flight Center Photo Release 03-041 (03-24-03)
Gamma-ray burst or bursts (GRBs in English) are the brightest electromagnetic events known in the universe.
These gamma-ray bursts, are caused by the collapse of a massive star at the end of its life which begins a rapid rotation. a black hole forming during the death of the massive star produced these gamma rays that carry the power of billions of nuclear bombs
NASA - Chandra confirms gamma-ray burst and supernova connection - Marshall Space Flight Center Photo Release 03-041 (03-24-03)