Russia - Murmansk Oblast - Murmansk

Aurora Borealis in Murmansk.

Sent by Mashe from Murmansk, Russia.

Murmansk (Russian: Му́рманск; Kildin Sami: Мурман ланнҍ; Northern Sami: Murmánska; Skolt Sami:Muurman) is a port city and the administrative centre of Murmansk Oblast, Russia, located in the extreme northwest part of Russia, on the Kola Bay, an inlet of the Barents Sea on the northern shore of the Kola Peninsula, not far from Russia's borders with Norway and Finland. Regardless of how north it is, Murmansk tends to be nearly the same as any other Russian city of its size, featuring highway and railway access to the rest of Europe, a railway station, and a trolleybus system, in fact, the northernmost on Earth. Population: 307,257 (2010 Census); 336,137 (2002 Census); 468,039 (1989 Census). Despite its rapidly declining population, Murmansk remains the largest city north of the Arctic Circle. (read further)

Canada - Northwest Territories - Yellowknife

Aurora Paradise, Yellowknife, Northwest Territories, Canada.

Sent by NFVC from Yellowknife, Canada.

Yellowknife /ˈjɛloʊnaɪf/ (2011 population: 19,234) is the capital city and largest community of the Northwest Territories (NT or NWT), Canada. It is located on the northern shore of Great Slave Lake, approximately 400 km (250 mi) south of the Arctic Circle, on the west side of Yellowknife Bay near the outlet of the Yellowknife River. Yellowknife and its surrounding water bodies were named after a local Dene tribe once known as the 'Copper Indians' or 'Yellowknife Indians' (now referred to locally as the Yellowknives Dene (First Nation)) who traded tools made from copper deposits near the Arctic Coast. The current population is ethnically mixed. Of the eleven official languages of the Northwest Territories, five are spoken in significant numbers in Yellowknife: Dene Suline, Dogrib, South and North Slavey, English, and French. In the Dogrib language, the city is known as Somba K’e (Som-ba Kay) ("where the money is"). (read further)

Norway - Tromsø

Norway - Tromsø
Northern Light 

Sent by Sissel from Tromsø, Norway.

Tromsø (Norwegian pronunciation: [ˈtrʊmsø]); Northern Sami: Romsa; Kven: Tromssa) is a city and municipality in Troms county, Norway. The administrative centre of the municipality is the city of Tromsø.

Tromsø city is the ninth-largest urban area in Norway by population, and the seventh largest city in Norway by population. It is the largest city and the largest urban area in Northern Norway, and the second largest city and urban area north of the Arctic Circle in Sápmi (following Murmansk). Most of Tromsø, including the city centre, is located on the small island of Tromsøya in the county of Troms, 350 kilometres (217 mi) north of the Arctic Circle. Substantial parts of the urban area are also situated on the mainland to the east, and on parts of Kvaløya—a large island to the west. Tromsøya is connected to the mainland by the Tromsø Bridge and the Tromsøysund Tunnel, and to the island of Kvaløya by the Sandnessund Bridge. The city is warmer than most other places located on the same latitude, due to the warming effect of the Gulf Stream. (read further)

Aurora Borealis

The Northern lights illuminate the frosty of the "blue twillight"-period.

Sent by Tarri, a postcrosser from Finland.

This is from Wikipedia : Auroras, sometimes called the northern and southern (polar) lights or aurorae (singular: aurora), are natural light displays in the sky, usually observed at night, particularly in the polar regions. They typically occur in the ionosphere. They are also referred to as polar auroras.

In northern latitudes, the effect is known as the aurora borealis, named after the Roman goddess of dawn, Aurora, and the Greek name for north wind, Boreas, by Pierre Gassendi in 1621.[1] The aurora borealis is also called the northern polar lights, as it is only visible in the sky from the Northern Hemisphere, with the chance of visibility increasing with proximity to the North Magnetic Pole. (Earth's is currently in the arctic islands of northern Canada.) Auroras seen near the magnetic pole may be high overhead, but from further away, they illuminate the northern horizon as a greenish glow or sometimes a faint red, as if the sun were rising from an unusual direction. The Aurora Borealis most often occurs near the equinoxes. The northern lights have had a number of names throughout history. The Cree call this phenomenon the "Dance of the Spirits." In the Middle Ages the auroras have been called a sign from God (see Wilfried Schröder, Das Phänomen des Polarlichts, Darmstadt 1984).

Its southern counterpart, the aurora australis or the southern polar lights, has similar properties, but is only visible from high southern latitudes in Antarctica, South America, or Australasia. Australis is the Latin word for "of the South."

Auroras can be spotted throughout the world and on other planets. It is most visible closer to the poles due to the longer periods of darkness and the magnetic field.