The best science photos of the year, as decreed by the Royal Society

By Rory Sullivan, CNN

Updated 0004 GMT (0804 HKT) December 10, 2019

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An image of three continuously bouncing oil droplets was the winner of this year's competition. <br /><br />
Photos:
Quantum Droplets by Aleks Labuda – An image of three continuously bouncing oil droplets was the winner of this year's competition.

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A clown fish floats among the tentacles of a bleaching sea anemone in Thuwal, Saudia Arabia.
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Fade to White by Morgan Bennett-Smith – A clown fish floats among the tentacles of a bleaching sea anemone in Thuwal, Saudia Arabia.
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Most tornadoes start as funnel clouds, such as this large one in the Yukon, Canada.
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Twister in the Yukon by Lauren Marchant – Most tornadoes start as funnel clouds, such as this large one in the Yukon, Canada.
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Blue-spotted mudskippers skirmish in the Mai Po wetlands, Hong Kong.
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Mudskipper Turf War by Daniel Field – Blue-spotted mudskippers skirmish in the Mai Po wetlands, Hong Kong.
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A lunar halo above the forest of Mogilev, Belarus demonstrates a phenomenon often seen in frosty weather when there is high humidity.