A Swedish town has been shocked after the sky above their homes has turned a stunning shade of purple at night.
But, it's not a new kind of aurora - it's actually caused by a nearby tomato farm.
The skies of Trelleborg, which lies on the southern coast of the country - have caused much bemusement for residents, turning a glowing bright purple at night fall.
The colour is caused by an energy-efficient lighting system that's been installed at one of the country's tomato farms.
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It's said to be good for the plants, with the new system said to help the tomatoes grow for longer.
But residents from nearby Gislov and Trelleborg have said that the lights shine into their homes, disturbing them at night.
An agreement was reached meaning that from 6 November, operators started to turn the lights off between 5pm and 11pm.
But the town's environmental manager, Mikael Noren, will be submitting a further action plan in the hope of stopping any further disagreements with residents.
It's usually most clear when there are low clouds, with the bright lights reflecting of them and lighting them up from the ground.
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But the owners of the farm have put out a statement about the lights.
A spokesperson for Alfred Pedersen & Son, who own the farm, said: "As a first step, we have chosen to turn off the entire tomato cultivation in the evenings.
"Although this will be a step back for us. People were not meant to be angry. We just wanted to save electricity and grow more."
For a more natural purple display in the sky, NASA recently shared a photo of an astronomical phenomenon that still mystifies scientists - with so-called 'aurora chasers' dying for a glimpse of the spectacle.
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Strong Thermal Emission Velocity Enhancements, or STEVEs for short, are aurora-like ribbons of light that stream across the night sky.
As part of the space centre's 'Astronomy Picture of The Day', NASA shared a stunning example of one over Childs Lake in Canada, which was taken by photographer Krista Trinder back in 2017.
NASA wrote alongside the photo: "What's creating these long glowing streaks in the sky? No one is sure. Known as Strong Thermal Emission Velocity Enhancements (STEVEs), these luminous light-purple sky ribbons may resemble regular auroras, but recent research reveals significant differences.
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"A STEVE's great length and unusual colors, when measured precisely, indicate that it may be related to a subauroral ion drift (SAID), a supersonic river of hot atmospheric ions thought previously to be invisible.
"Some STEVEs are now also thought to be accompanied by green picket fence structures, a series of sky slats that can appear outside of the main auroral oval that does not involve much glowing nitrogen."
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