Ghostly Orange Light Envelopes Earth During Rare Airglow
Ghostly Orange Light Envelopes Earth During Rare Airglow
A mysterious jam-colored light show made the Earth look like a gigantic orange lollipop, prompting an astronaut aboard the International Space Station to take a picture of her on October 7.
The enveloping orange hue is known as aerial brightness, a fascinating luminescence caused by chemical reactions in the Earth's atmosphere. NASA reported. This ghostly glow usually occurs when ultraviolet radiation from sunlight energizes the nitrogen, oxygen, sodium and ozone molecules in the atmosphere. These energized molecules bump into each other and lose energy as they collide, resulting in a weak but spectacular glow, NASA said.
Airglow looks better at night, since it is 1 trillion times weaker than sunlight. NASA said. This particular photograph was taken at an altitude of more than 250 miles (about 400 kilometers) over Australia.
The[[Photos of the Earth: Iconic images of Earth from space]
Radiant flush, also known as chemiluminescence, is comparable to bright chemical reactions on Earth, including those seen in children's toys as luminous sticks and silly putty that glows in the dark, NASA added.
But aerial brightness is more than a fascinating attraction of light. It can also teach scientists about the functioning of the upper atmosphere. For example, it can shed light on how particles move near the interface of Earth and space, including how space weather and terrestrial weather connect, said NASA.
Researchers are already using satellites, such as NASA. Ionospheric connection scanner (ICON) - to study this dynamic zone.
Although this brightness of air emanated orange, the phenomenon is not always the color of Doritos sandwiches. In 2016, a photographer from the Azores Islands in the Atlantic Ocean took a picture of a Rainbow color air glow, according to Space.com, a sister site of Live Science.
Originally published in Living science.
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