A polar day is when the sun does not set and stays above the horizon for an extended period, while a polar night is when the sun never rises above the horizon. These phenomena are ...

Cecilia Blomdahl tells PEOPLE exclusively about her life in Svalbard and what it's like living in the dark 24-7 during Polar ...

A strong, stable vortex is like a skater spinning with their arms tucked closely in, holding in an area of cold air over the Arctic. But when there’s a wobble in the rotation, winds in the vortex can ...