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Astronomy Picture Of the Day (APOD)
![Танец полярного сияния над Норвегией](http://images.astronet.ru/pubd/2011/03/28/0001250707/aurora.preview.png)
28.03.2011
Sometimes, after your eyes adapt to the dark, a spectacular sky appears. Such was the case earlier this month when one of the largest auroral displays in recent years appeared over northern locations like the border between Norway and Russia.
![Долины Маринера: Большой каньон на Марсе](http://images.astronet.ru/pubd/2011/03/28/0001250708/marsglobe_viking_900.preview.jpg)
27.03.2011
The largest canyon in the Solar System cuts a wide swath across the face of Mars. Named Valles Marineris, the grand valley extends over 3,000 kilometers long, spans as much as 600 kilometers across, and delves as much as 8 kilometers deep.
![Т Тельца и переменная туманность Хинда](http://images.astronet.ru/pubd/2011/03/26/0001250669/n1555block900.preview.jpg)
26.03.2011
The yellowish star near center in this remarkable telescopic skyview is T Tauri, prototype of the class of T Tauri variable stars. Nearby it is a dusty yellow cosmic cloud historically known as Hind's Variable Nebula (NGC 1555).
![Разбушевавшееся полярное сияние над Йеллоунайф](http://images.astronet.ru/pubd/2011/03/25/0001250639/aurora_h3kwon_600.preview.jpg)
25.03.2011
Intense auroral activity flooded the night with shimmering colors on February 24, captured here from a lodge near the city of Yellowknife in northern Canada. The stunning sequence (left to right) of three all-sky exposures, taken at 30 second intervals, shows rapid changes in dancing curtains of northern lights against a starry background.
![Восход Луны над Бостоном](http://images.astronet.ru/pubd/2011/03/25/0001250625/Moonrise2DdiC900.preview.jpg)
24.03.2011
Last week's Full Moon was hard to miss. Rising on March 19, its exact full phase occurred within an hour of perigee, the closest point in the Moon's orbit to Earth.
![MWC 922: красная квадратная туманность](http://images.astronet.ru/pubd/2011/03/23/0001250578/redsquare_tuthill_900.preview.jpg)
23.03.2011
What could cause a nebula to appear square? No one is quite sure. The hot star system known as MWC 922, however, appears to be embedded in a nebula with just such a shape. The above image combines infrared exposures from the Hale Telescope on Mt.
![NGC 6384: звезды на фоне спиральной галактики](http://images.astronet.ru/pubd/2011/03/22/0001250566/ngc6384_hst_900.preview.jpg)
22.03.2011
The universe is filled with galaxies. But to see them astronomers must look out beyond the stars of our galaxy, the Milky Way. For example, consider this colorful telescopic view of spiral galaxy NGC 6384, about 80 million light-years away in the direction of the constellation Ophiuchus.
![Холодное пятно в реликтовом излучении](http://images.astronet.ru/pubd/2011/03/21/0001250544/cmb7_wmap_circle_900.preview.jpg)
21.03.2011
How could part of the early universe be so cold? No one is sure, and many astronomers now think that the CMB Cold Spot on the cosmic microwave background (CMB) radiation is not particularly noteworthy. As the early universe expanded and cooled, it suddenly and predictably became transparent.
![Луна над Парфеноном](http://images.astronet.ru/pubd/2011/03/20/0001250513/LunarParthenon_ayiomamitis.preview.jpg)
20.03.2011
Did you see the Full Moon last night? Near the horizon, the lunar orb may have seemed to loom large, swollen in appearance by the famous Moon illusion. But the Full Moon really...
![M106](http://images.astronet.ru/pubd/2011/03/19/0001250497/lrg_ngc4258gabany900.preview.jpg)
19.03.2011
Close to the Great Bear (Ursa Major) and surrounded by the stars of the Hunting Dogs (Canes Venatici), this celestial wonder was discovered in 1781 by the metric French astronomer Pierre Mechain. Later, it was added to the catalog of his friend and colleague Charles Messier as M106.
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