Esa astronaut Alexander Gerst has captured stunning footage Of Aurora from the ISS

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Above can be seen an animation of the moment Esa astronaut Alexander Gerst and his crewmates on the ISS spottted an aurora around the ISS. The green light is caused by the interaction of solar wind with particles in Earth’s atmosphere. Part of the huge solar array can also be seen moving (credit: Esa/Nasa)

The German watched as an aurora surrounded the station in green light. The event occurred after a period of increased solar activity last week


When the sun is more active auroras are seen above Earth at lower latitudes. This makes them visible to astronauts on the ISS and also to observers on Earth closer to the equator


They are usually only visible near Earth’s North and South poles where the magnetic fields are strongest. They are caused by the interaction of solar wind with magnetically charged particles in Earth’s atmosphere

When the sun is more active an increase in solar wind pushes them lower

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