What Are The Southern Lights?
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The southern lights, or aurora australis, are the Southern Hemisphere counterpart to the northern lights. They form by the same process: charged particles from the Sun colliding with atmospheric gases. The southern lights appear mainly over Antarctica and southern parts of Australia, New Zealand, and South America.
The southern lights are the southern equivalent of the northern lights. They form by the exact same mechanism but appear around Earth's magnetic south pole instead of the magnetic north pole. Because most of the area around the magnetic south pole is ocean or uninhabited Antarctica, southern lights are seen by far fewer people than the northern lights, but they're equally spectacular when visible.
What are aurora australis?
The southern counterpart to aurora borealis. According to NASA, auroras appear in both Northern and Southern Hemispheres because Earth's magnetic field channels solar particles toward both magnetic poles. Aurora australis means southern dawn in Latin, paralleling aurora borealis (northern dawn). The two are essentially mirror images of each other, often forming at the same times and with similar shapes when solar activity is strong. NASA satellites have observed simultaneous displays at both poles.
Where can you see them?
Around Antarctica and southern continents. The auroral oval around Earth's magnetic south pole sits mostly over Antarctica, which has few human inhabitants. Some southern lights are visible from Tasmania (Australia), the South Island of New Zealand, Patagonia (Chile and Argentina), and the Falkland Islands. During strong geomagnetic storms, they can appear as far north as mainland Australia, much of New Zealand, and the southern parts of South America. Most southern light viewing happens from Australia and New Zealand in practice.
Are they different from northern lights?
Essentially identical. The southern and northern lights share the same physics: solar particles channeled by Earth's magnetic field into the upper atmosphere, where they excite gases and produce colored light. The colors are the same (green from oxygen at lower altitudes, red from oxygen higher up, blue and purple from nitrogen). When viewed from space, the two appear as nearly symmetric ovals on opposite sides of Earth. The main practical difference is geographic accessibility: northern lights have many populated viewing areas while southern lights have far fewer.
How are they observed?
From the few inhabited southern locations and from research stations. Photographers in southern Australia and New Zealand chase the southern lights regularly. The Aurora Australis from Antarctic research stations like McMurdo and Scott Base offers some of the most dramatic views, though seen by few people. Astronauts on the International Space Station have captured spectacular images of both auroras simultaneously. Many cruise ships and tourist expeditions now offer southern light viewing tours, mostly from Tasmania and southern New Zealand.
The southern lights, or aurora australis, are the Southern Hemisphere counterpart to the northern lights. They form by the same process and appear around Earth's magnetic south pole. Most of the auroral oval sits over Antarctica, but the lights can be seen from Tasmania, southern New Zealand, Patagonia, and during strong storms from mainland Australia. The southern lights are physically identical to the northern lights but seen by far fewer people.
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