• Monday April 6,2020

Northern Lights

We explain to you what the aurora borealis is, how it is produced and where it can be seen. In addition, the northern lights of Iceland, Canada and Norway.

The aurora borealis is an atmospheric phenomenon that occurs near the North Pole.
  1. What is the northern lights?

The polar aurora ( aurora polaris ) is an atmospheric phenomenon that occurs in certain regions of the planet, in the night sky of certain annual periods. It is characterized by the appearance of colored lights in elongated shapes on the sky .

They occur near the poles and are called aurora borealis if they occur in the northern hemisphere . Those that occur in the southern hemisphere are called southern auroras. This phenomenon has intrigued humanity since time immemorial, and was associated with snakes or dragons that furrowed the sky, or particular gods.

His scientific study began in the seventeenth and eighteenth centuries, until he discovered that they are particles ejected by the Sun in their periodic combustion and that they crash against the magnetosphere of our planet . In 1896 the Norwegian physicist Kristian Birkeland managed to reproduce them in the laboratory, greatly facilitating their understanding.

Polar auroras can best be seen between September and March (northern hemisphere) or between March and September (southern hemisphere). Its shape, colors and duration can vary greatly, oscillating between silhouettes near the horizon and beams of light that cover the entire sky, tending to disappear as the dawn approaches.

It can serve you: Latitude

  1. How does a northern lights occur?

The polar aurora is produced by the shock of the solar wind and the magnetosphere.

Polar auroras occur when the magnetic layer that surrounds our planet, known as the magnetosphere, comes into contact with a diverse series of charged solar particles, coming from some ejection of the king star into space. These ejections are known as solar wind .

These particles travel at approximate speeds of 490 to 1000 kmps, covering the distance between our planet and the center of the Solar System in just two days. However, when they approach our atmosphere, the Earth's magnetic field repels them, and they flow around the planet as does the water of a river in front of a stone, following the pattern of the magnetosphere.

A few particles are trapped in the magnetosphere, charging the atoms of the upper layers of our atmosphere, which release excess energy in the form of visible light . It is a process similar to what happens inside the neon tubes.

  1. Where do the northern lights look?

As we have said, polar auroras are usually seen in the vicinity of each Earth pole, although it is possible to observe them for brief periods in other regions. This depends on the intensity of the solar activity. The most common auroras observation areas are:

  • Northern Hemisphere The coasts of Iceland are a frequent observation point from late August to April, as well as in Alaska, United States, specifically in the vicinity of Denali National Park. The same in the Canadian Northwest Territories, near the population of Yellowknife, or in the largest urban region of northern Norway, very close to the Arctic Circle, in Tromsǿ.
  • Southern Hemisphere The southern auroras in southern Tasmania, Australia and New Zealand are famously beautiful and can be seen throughout the year. However, the best location for this is Antarctica itself, the frozen continent, at least on its habitable coasts that face the South American cone. In that sense, the last cities and regions of Argentina and Chile may also be points of eventual observation, such as the island of Ushuaia.
  1. Northern Lights in Iceland

In Iceland, the beauty of the Kirkjufellsfoss waterfall is combined with the northern lights.

Iceland has regions near the Arctic circle that are ideal for observing auroras, especially between September and March, between 6:00 p.m. and 4:00 a.m., on the north coast of the Island. It should be taken into account that it is a sparsely populated region compared to the southern coast, warmer, where the capital Reykjavik is located.

  1. Northern Lights in Canada

Northern Lights in Yuk n, Canada .

The Northern Lights in Canada can best be seen between October and March, in the period of greatest darkness, although they are present throughout the year. The ideal territories to do so are in the northwest region and in the Yukon, especially in Whitehorse, Yellowknife, Tuktoyaktuk, Nunavut, Manitoba, Kuujjuaq or British Columbia and Alberta.

  1. Northern Lights in Norway

Northern Lights in Tromso, Norway.

In principle, the auroras can be seen from all over the country, although obviously the best regions are around the limit with the Arctic polar circle and the best time between September and March. The Lofoten Islands and the coast to Cape Verde are good observation points, as well as Troms .

  1. Southern aurora

The southern auroras can be observed mainly on the basis of the Antarctica.

The southern auroras are as beautiful as the northern lights, and they have no distinction except that they are in the southern hemisphere . However, they are less famous because there are no populations near the South Pole, but the population of Antarctica is limited to the inhabitants of the scientific and military bases.

Interesting Articles



We explain what kinematics is and what is the origin of this branch of physics. Elements of kinematics, and examples of application. The basic elements of kinematics are three: space, time and a mobile. What is kinematics? The physics is a branch of physics that studies the movement of solid objects and their trajectory as a function of time , without taking into account the origin of the forces that motivate it

Fiber optic

Fiber optic

We explain what the optical fiber is and how it works. In addition, for what it is used, characteristics, advantages and disadvantages of the optical fiber. Optical fiber is the most advanced cable transmission medium that exists. What is the optical fiber? Optical fiber is a physical means of transmitting information , common in data and telecommunications networks, consisting of a thin glass or plastic filament, through s of which pulses of laser or led light travel, in which the data to be transmitted is contained



We explain what a stereotype is and how this structured image works. In addition, the types of stereotypes and a brief conclusion. Stereotypes are a set of pre-established ideas, attitudes and beliefs. What is Stereotype? A stereotype consists of a structured image and accepted by most people as representative of a certain group



We explain to you what breathing is and why we breathe. In addition, how is the breathing process and what happens to the cells when breathing. Breathing is commonly known as the process by which we inhale air. What is breathing? Breathing is a biological process typical of living beings , whose goal is to keep your body active (therefore, alive) through the exchange of carbon dioxide for oxygen

Thermal Conductivity

Thermal Conductivity

We explain to you what the thermal conductivity is and the methods used by this property. In addition, its units of measure and examples. The thermal conductivity is the property of certain materials capable of transmitting heat. What is the thermal conductivity? There is talk of thermal conductivity to refer to a property of certain materials capable of transmitting heat , that is, allowing the passage of kinetic energy from their molecules to others



We explain what a conflict is and what types of conflicts exist. In addition, why they occur and what are the social conflicts. Resource scarcity is a conflict trigger. What is conflict? A conflict is a manifestation of opposing interests, in the form of a dispute . It has many synonyms: fight, discrepancy, disagreement, separation, all with a negative assessment a priori