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Astronomy Picture Of the Day (APOD)
![Структура остатка вспышки сверхновой N63A](https://images.astronet.ru/pubd/2004/01/04/0001195766/n63a_compcxc_c1.preview.jpg)
31.12.2003
Shells and arcs abound in this false-color, multiwavelength view of supernova remnant N63A, the debris of a massive stellar explosion. The x-ray emission (blue), is from gas heated to 10 million degrees C as knots of fast moving material from the cosmic blast sweep up surrounding interstellar matter.
![Космологические наблюдения за год](https://images.astronet.ru/pubd/2004/01/04/0001195752/globes_wmap.preview.jpg)
30.12.2003
This year, humanity learned that the universe is 13.7 billion years old. Before this year, the universe's age was thought to be about 13 billion years, but really only constrained to be between about 12 billion and 15 billion years old.
![Пылевые смерчи в марсианском кратере](https://images.astronet.ru/pubd/2003/12/30/0001195711/craterdevil_mgs.preview.jpg)
29.12.2003
What caused the streaks in this Martian crater? Since the above image shows streaks occurring both inside and outside the crater, they were surely created after the crater-causing impact. Newly formed trails like these...
![Туманность Голова Ведьмы](https://images.astronet.ru/pubd/2003/12/29/0001195698/witch_krejci.preview.jpg)
28.12.2003
Double, double toil and trouble; Fire burn, and cauldron bubble -- maybe Macbeth should have consulted the Witch Head Nebula. This suggestively shaped reflection nebula is associated with the bright star Rigel in the constellation Orion.
![Столбы и струи в Трехраздельной туманности](https://images.astronet.ru/pubd/2003/12/28/0001195682/trifid_hst.preview.jpg)
27.12.2003
Dust pillars are like interstellar mountains. They survive because they are more dense than their surroundings, but they are being slowly eroded away by a hostile environment. Visible in the above picture...
![Звездное скопление Плеяды](https://images.astronet.ru/pubd/2003/12/27/0001195672/m45kite_gendler_c1.preview.jpg)
26.12.2003
Perhaps the most famous star cluster on the sky, the Pleiades can be seen without binoculars from even the depths of a light-polluted city. Also known as the Seven Sisters and M45, the Pleiades is one of the brightest and closest open clusters.
![Молодая звезда, темное облако](https://images.astronet.ru/pubd/2003/12/26/0001195666/hh4647_sst_c2.preview.jpg)
25.12.2003
High-speed outflows of molecular gas from a young stellar object glow in infrared light, revealing themselves in this recent false-color image from the Spitzer Space Telescope. Cataloged as HH (Herbig-Haro) 46/47 the infrared source...
![Венера и 37-часовой месяц](https://images.astronet.ru/pubd/2003/12/25/0001195661/venus37moon_young.preview.jpg)
24.12.2003
At Table Mountain Observatory, near Wrightwood California, USA on October 26, wild fires were approaching from the east. But looking toward the west just after sunset, astronomer James Young could still enjoy this comforting view of a young crescent Moon and brilliant Venus through the the fading twilight. Setting over the horizon of Mt.
![Слоистые холмы на Марсе](https://images.astronet.ru/pubd/2003/12/24/0001195650/marshills_mgs.preview.jpg)
23.12.2003
Why are some hills on Mars so layered? The answer is still under investigation. Clearly, dark windblown sand surrounds outcropping of light sedimentary rock across the floor of crater Arabia Terra. The light rock clearly appears structured into many layers, the lowest of which is likely very old.
![Комета Энке возвращается](https://images.astronet.ru/pubd/2003/12/23/0001195647/encke_holloway.preview.jpg)
22.12.2003
It's back. Every 3.3 years, Comet Encke swoops back into our inner Solar System. First officially discovered in 1786, Comet Encke is on its 59 th documented return, making it one of the best-studied comets on the sky.
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