![Afterglow thumbnail](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/imageoftheweek/2022/22-11-11.jpg?t=638430738211267390)
Afterglow
This composite image—stitched together from pictures taken from a drone—shows the atmospheric scattering effect called afterglow. It was taken on a cold evening in Oulu, Finland, just after sunset, at a temperature of around -10 °C.
[OPN 2018 Photo Contest Editors’ Choice]
—Prateek Singh, University of Oulu, Finland