Aurora, luminous phenomenon of Earth’s upper atmosphere that occurs primarily in high latitudes of both hemispheres; in the Northern Hemisphere auroras are called aurora borealis, aurora polaris, or northern lights, and in the Southern Hemisphere they a
The southern lights, also called aurora australis, are seen less often than aurora borealis, the northern lights, because few people brave Antarctica's dark, freezing winters. Additional resources For ten facts about the Earth in space, visit the NASA Science website. Additionally, you can hear...
the ions from solar wind collide with atmospheric oxygen and hydrogen molecules, exciting them into higher states of energy. The atoms shed this excess energy by emitting photons of light, which we see as the colorfulaurora borealisand aurora australis. ...
Aurora Australis From SpaceMay 24th 2010 - Photograph courtesy Johnson Space Center/NASA Ice sheets contain a record of hundreds of thousands of years of past climate,trapped in the ancient snow. Scientists recover this climate history by drilling cores in the ice, up to 3,500 meters (11,000...
Do you know of any additionalfun facts about the quokka? Share your thoughts and comments below… Your best trip starts here Read Next Australia | Touring with Trafalgar Aurora australis: why 2025 is the best time to see the Southern Lights ...
The ability to make simultaneous measurements across the continent pushed forward understanding of the aurora australis and other atmospheric phenomena. The spatial spread of recording stations allowed scientists to unravel new secrets about the physical nature of Antarctica, such as the amount of ice an...
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The line of the Great Bear’s back (from Megrez to Dubhe) points towardCapella, the luminary ofAurigaand the 6th brightest star in the sky. Castor inGeminiis found on the line drawn from Megrez through Merak and extended by about five times the distance as that between the two stars. ...
The aurora borealis, or northern lights, in the Northern Hemisphere and the aurora australis, or southern lights, in the Southern Hemisphere are visible light emissions caused by the collision of charged particles (ions and electrons) from the solar wind with the upper atmosphere of Earth. ...
Aurora Australis or Southern Lights behind an illuminated gum tree.(Image credit: Chasing Light - Photography by James Stone james-stone.com via Getty Images) On Earth, the northern lights' counterpart in the Southern Hemisphere is the southern lights — they are physically the same and differ ...