Real-time footage of the aurora borealis moving in the night sky, centred on the constellation Ursa Minor. The pole star Polaris is at upper centre. The aurora borealis, or northern lights, is an atmospheric phenomenon caused when charged particles in the solar wind impact Earth's upper atmosphere, ionising the gases and causing them to glow. They occur in a halo around each magnetic pole, as the charged particles are channeled there by Earth's magnetic field. Filmed from Tungeneset, on Senja island, Norway, on 29th September 2021.