Reuters

Striking images of Auroras.

Today's postcard is brought to you from Yukon, which experienced a particularly striking aurora last night (see the picture above). According to NASA, the swirls of green and red are courtesy of "the interaction of a coronal mass ejection from the sun with Earth's magnetosphere." In honor of this striking image, here are pictures of night sky lights from around the world.


A general view of the aurora borealis near the city of Tromsoe in northern Norway on January 25, 2012. (Scanpix/Reuters)


A portion of the International Space Station is seen along with a view of the Midwestern United States at night with Aurora Borealis, is seen in this September 29, 2011. The night skies viewed from the space station are illuminated with light from many sources, including artificial light from human settlements with a characteristic yellow tinge and the green light of the Aurora Borealis, seemingly reflected off Earth?s surface beneath the aurora. (Reuters)


A view of a shooting star (Draconid) and northern lights near Skekarsbo at the Farnebofjardens national park, 93 miles north of Stockholm on October 8, 2011. (Reuters)


Complex Light Detection and Ranging instrument in seen in operation at Davis station in Antarctica. A complex LIDAR instrument in seen in operation at Davis station in Antarctica with the glow of the Aurora Australis also in the sky, in this undated photo supplied by the Australian Antarctic Division. Physicists from the division and the University of Adelaide have developed the LIDAR to study the middle atmosphere above Davis Station. The LIDAR obtains information by sending pulses of green laser light into the sky and measuring the extremely small spectral changes that take place when the light is scattered by atmospheric gases and aerosols. The information collected will be used to assess long-term climate trends and to better understand atmospheric motions. (Reuters)

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