The Earth's axis of rotation – and hence the position of the North Pole – was commonly believed to be fixed … See more

As early as the 16th century, many prominent people correctly believed that the North Pole was in a sea, which in the 19th century was called the Polynya or Open Polar Sea. It was therefore hoped that passage co… See more

The sun at the North Pole is continuously above the horizon during the summer and continuously below the horizon during the winter. Sunrise is just before the March equinox (around 20 March); the Sun then takes thre… See more

In most places on Earth, local time is determined by longitude, such that the time of day is more or less synchronised to the position of the Sun in the sky (for example, at midday, the Sun is roughly at its highest). This line of … See more

The North Pole is substantially warmer than the South Pole because it lies at sea level in the middle of an ocean (which acts as a reservoir of heat), rather than at altitude on a continental land mass. Despite being an ice cap, th… See more