Once a year, residents of Longyearbyen gather where the steps of the old hospital used to be to witness the return of something they have not seen in months – sunlight.

The Arctic archipelago of Svalbard, part of Norway, is as far north as humans can live. This dramatic polar world experiences 24-hour daylight in summer and total darkness in winter.

But on March 8th, locals and visitors of its largest settlement, Longyearbyen, wait with baited breath until a single ray of sunshine appears upon the old hospital steps, warming their cheeks for a few minutes before disappearing once more behind the vast mountains that surround the town.

Journalist and producer Lara Bullens takes us with her to witness this miraculous moment, but also to understand why people have decided to make a home in a place not meant for humans.

Svalbard is a barren frozen land, devoid of trees or crops. The risk of avalanches is always lurking around the corner. Polar bears outnumber humans. Powerful winds and sub-zero temperatures engulf the landscape most of the year. Deprived of sunlight for months at a time, many residents battle depression.

The remote landscape is also experiencing vast transitions. The Arctic is warming twice as fast as any other part of the planet, banishing sea ice and opening its waters to the exploitation of natural resources. Coal mining, the industry on which Svalbard’s economy was built, is coming to an end. And non-Norwegians living in Longyearbyen are increasingly feeling less stable here.

Yet humans decide to stay, bound together by the eternal cycle of light.

Written and Presented by Lara Bullens
Produced by Lara Bullens and Steven Rajam
Executive Producer: Leonie Thomas
Mix and Sound Design: Mike Woolley
An Overcoat Media production for BBC Radio 4