Star trails captured using an exposure time of two hours to record the rotation of the earth on its Polar Axis, stars are rotating around the Pole Star (Polaris), the Sahara Desert near Merzouga, Morocco, North Africa, Africa

Star trails in night sky around Polaris (the pole star) over dunes of the Erg Chebbi sand sea near Merzouga, Morocco, North Africa, Africa

Crew member Jennifer Davidson of the Lindblad Expeditions ship the National Geographic Polaris in the waters surrounding the Galapagos Island Archipelago, Ecuador

Crew member Juan Carlos Alvia of the Lindblad Expeditions ship the National Geographic Polaris in the waters surrounding the Galapagos Island Archipelago, Ecuador

Crew members of the Lindblad Expeditions ship the National Geographic Polaris clowning around in tortoise shells on Santa Cruz Island in the Galapagos Island Archipelago, Ecuador

Lindblad Expeditions ship the National Geographic Polaris in the waters surrounding the Galapagos Island Archipelago, Ecuador

Lindblad Expeditions ship the National Geographic Polaris in the waters surrounding the Galapagos Island Archipelago, Ecuador

Crew videographer of the Lindblad Expeditions ship the National Geographic Polaris in the waters surrounding the Galapagos Island Archipelago, Ecuador

Lindblad Expeditions ship the National Geographic Polaris in the waters surrounding the Galapagos Island Archipelago, Ecuador

The Lindblad expedition ship Polaris operating in the Galapagos Island Archipeligo since 1997.

Circumpolar star trails over a grand old barn in southern Alberta, on a fine spring night, May 23, 2018. Illumination is from the waxing gibbous Moon to the south. This is looking north to Polaris at top right. A thunderstorm is on the northern horizon with a lightning bolt as a bonus.

The 1910 Liberty Schoolhouse, a classic pioneer one-room school, on the Alberta prairie under the stars on a spring night, with an aurora dancing to the north. Moonlight provides the illumination. Cassiopeia is above the school. Polaris is at top.

The eroding formations of Dinosaur Provincial Park, Alberta, lit by the rising gibbous Moon, off camera at right, on April 21/22, 2019. This is looking north, with the stars of the northern sky pivoting around Polaris.

Pointer with distance to the North Star on La Palma; La Palma; Canary Islands; Spain

Snowmobiling in the mountains.

Snowmobiling in the mountains.

A tiny Benthic Hydromedusa, with a bell size of less than one centimeter, (Ptychogastria polaris), swimming in front of an iceberg, Tasiilaq, East Greenland

A tiny Benthic Hydromedusa, with a bell size of less than one centimeter, (Ptychogastria polaris), Tasiilaq, East Greenland

A tiny Benthic Hydromedusa, with a bell size of less than one centimeter, (Ptychogastria polaris), swimming in front of an iceberg, Tasiilaq, East Greenland

A tiny Benthic Hydromedusa, with a bell size of less than one centimeter, (Ptychogastria polaris), Tasiilaq, East Greenland

A tiny Benthic Hydromedusa, with a bell size of less than one centimeter, (Ptychogastria polaris), Tasiilaq, East Greenland

A tiny Benthic Hydromedusa, with a bell size of less than one centimeter, (Ptychogastria polaris), Tasiilaq, East Greenland

A tiny Benthic Hydromedusa, with a bell size of less than one centimeter, (Ptychogastria polaris), swimming in front of an iceberg, Tasiilaq, East Greenland