The particles produce an electrical current that reaches the ground. In very extreme circumstances, this could affect electric power lines, oil and gas pipelines, computer networks and iCloud systems. There could also be a risk to aeroplanes flying at very high altitudes. All cameras and lenses will give different results, so a bit of trial and error is needed to find out what works best for you. This means that settings which work one night may not work the next. Covid Updated information.
Hurtigruten Group Go to Hurtigruten Expeditions. Go to Norwegian Coastal Express. Frequently Asked Questions: the Northern Lights Check out our guide with the most popular questions about the incredible aurora borealis.
Where can I see the Northern Lights? How are the Northern Lights created? Watch this stunning NASA footage of the aurora borealis from space. Related cruises Multiple offers. Why are the northern lights only spotted at areas around the poles? Did you know that the sun has weather? We call it space weather. Read more: Solar weather has real, material effects on Earth. The sun is constantly blowing a spray of tiny particles in all directions, called the solar wind.
Fortunately, for living things like us, the Earth has a magnetic field, which causes the planet to act like a giant magnet in space and protects Earth from the solar wind. This crash happens between very tiny particles at speeds much faster than a bullet, so the result is very different from than say, a car crash. Instead of throwing off smaller pieces or exploding, they emit light. One of the satellites captured images of the Northern Hemisphere, and the other monitored the south.
The researchers were looking for substorms caused by solar winds that had blown toward the Earth at a tilt. And during substorms, the whole process creating symmetry repeats itself. Picture turning the dial of a compass from north by south to northwest by southwest. Image by NASA. You can think of a solar wind and its magnetic tug creating a cartoon raindrop. The more dramatic angle of the solar wind, the more asymmetrical pressure builds up in the tip of the metaphorical raindrop.
The magnetic field that belongs to the Earth disentangles itself from the solar wind and comes back to its original position. It changes our understanding of cause and effect. The aurora borealis and aurora australis can be seen from the International Space Station. So when there is unusually high activity on the Sun, the region of auroral activity on Earth becomes wider, and there is a chance of seeing auroras at lower latitudes, where most people live.
Where migh t you be able to see auroras on a night like this? This picture shows the north auroral oval during a major geomagnetic substorm on July 15, , when the Sun was nearing the maximum in its year activity cycle. Can you tell where the biggest auroras are? Look carefully, and you'll notice that Greenland and the top of North America are completely inside the oval.
Here is beautiful aurora picture from Ontario, in eastern Canada. It was taken during another substorm, just a few days earlier. This is on roughly the same latitude as New England in the United States. And this picture, even more recent, comes from Mount Wilson observatory in southern California during the arrival of a major geomagnetic substorm on March 31st, If you would like to see today's auroral forecast, visit the University of Alaska's Geophysical Institute.
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