<div dir="auto"><a href="https://www.esa.int/Science_Exploration/Space_Science/Integral/Blast_from_the_past_gamma-ray_burst_strikes_Earth_from_distant_exploding_star">https://www.esa.int/Science_Exploration/Space_Science/Integral/Blast_from_the_past_gamma-ray_burst_strikes_Earth_from_distant_exploding_star</a> </div>