What is polar night?

Those who live near Earth’s icy polar regions experience near-constant night every winter.

Polar night - Wikipedia

What is polar night?

How to survive the long polar night – Svalbarði Polar Iceberg Water

What is the Polar Night? Surviving the 'Dark Season' in Tromsø

Plunged into darkness: polar night in the Arctic Circle

The Polar Night in Northern Norway List over places when its dark 24/7

Midnight sun and polar night - Spitzbergen

The Polar Night in Svalbard - Visit Svalbard

Polar Nights in Norway

Lapland's 8 seasons: Polar night - Villa Rauha's shop for dreams

What are polar nights? Best Served Scandinavia

Arctic Polar Night Isn't for Sleep, Researchers Say