The results shed some light on how our planet's protective layers of plasma interact with radiation from faraway events in space - and how we can use the ionosphere to detect and study gamma ray bursts.
This artist's illustration shows what happens when a burst of gamma rays from 2.4 billion light years away strikes charged particles in Earth's atmosphere.
ESA/ATG Europe Earth's ionosphere is actually several layers of electrically charged gas, called plasma, floating at different altitudes in the upper atmosphere.
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