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Astronomy Picture Of the Day (APOD)
![Горящий древовидный спрайт](https://images.astronet.ru/pubd/2004/10/09/0001199962/burning_tree.preview.jpg)
2.08.2001
This dramatic, garishly colored image was captured with a low-light level camera on 2001 June 7. It shows what appears to be a "burning tree" above the National Cheng Kung University campus in Tainan City, Taiwan ... but the burning tree is actually a fleeting red sprite 300 kilometers away.
![Молодой марсианский ландшафт](https://images.astronet.ru/pubd/2004/10/09/0001199963/marsflow_mgs.preview.jpg)
1.08.2001
What caused the pits, ridges, and gullies on otherwise smooth Martian terrain? One hypothesis is water. The lack of craters at this mid-latitude location indicates that the terrain is quite young by geological standards, perhaps only 100,000 years old.
![Океаны под поверхностью спутника Юпитера Каллисто?](https://images.astronet.ru/pubd/2001/12/04/0001173384/callistocrescent_vg1.preview.jpg)
31.07.2001
Why does Jupiter's moon Callisto alter the magnetic field of Jupiter in its vicinity? Callisto itself does not have a strong magnetic field. One possible answer is that Callisto harbors sub-surface oceans of electrically conducting salt-water. This hypothesis was bolstered recently by a new analysis of how Callisto creates and dissipates heat.
![Звездное скопление R136](https://images.astronet.ru/pubd/2001/08/31/0001170568/30Doradus_hst.preview.jpg)
30.07.2001
In the center of star-forming region 30 Doradus lies a huge cluster of the largest, hottest, most massive stars known. Known as R136, the cluster's energetic stars are breaking out of the cocoon of gas and dust from which they formed.
![M57: туманность Кольцо](https://images.astronet.ru/pubd/2003/03/22/0001188073/m57ring_hst.preview.jpg)
29.07.2001
Except for the rings of Saturn, the Ring Nebula (M57) is probably the most famous celestial band. This planetary nebula's simple, graceful appearance is thought to be due to perspective -- our view from planet Earth looking straight into what is actually a barrel-shaped cloud of gas shrugged off by a dying central star.
![Дневной болид в 1944 году](https://images.astronet.ru/pubd/2001/08/26/0001170526/meteor44_appleton.preview.jpg)
28.07.2001
While stationed in central Africa in December 1944, Norman Appleton witnessed a meteor so bright he remembered it his entire life. Right before his eyes a tremendous smoking fireball streaked across the daytime sky. Years later, as an accomplished member of the Guild
![Пыльная буря на Марсе](https://images.astronet.ru/pubd/2002/08/25/0001179302/dustframe_tes.preview.jpg)
27.07.2001
If you've been unhappy with the weather on Earth, check out Mars, now in the grip of a planet-wide dust storm. Above, observations from the orbiting Mars Global Surveyor (MGS) spacecraft illustrate the storm's progress through July 21.
![Полное затмение на Мадагаскаре](https://images.astronet.ru/pubd/2002/08/25/0001179301/madtse2001_winter.preview.jpg)
26.07.2001
When the Moon's shadow reached out and touched Earth's southern hemisphere on 2001 June 21, the first total solar eclipse of the 21st century began. Starting in the Atlantic, the dark, central...
![Горячее газовое гало вокруг галактики NGC 4631](https://images.astronet.ru/pubd/2002/08/25/0001179299/ngc4631_chandra.preview.jpg)
25.07.2001
Is our Milky Way Galaxy surrounded by a halo of hot gas? A step toward solving this long-standing mystery was taken recently with Chandra X-ray observations of nearby galaxy NGC 4631. In the above composite picture, newly resolved diffuse X-ray emission is shown in blue, superposed on a HST image showing massive stars in red.
![Планетарная туманность Красный Паук](https://images.astronet.ru/pubd/2002/08/25/0001179300/ngc6537_hst.preview.jpg)
24.07.2001
Oh what a tangled web a planetary nebula can weave. The Red Spider Planetary Nebula shows the complex structure that can result when a normal star ejects its outer gases and becomes a white dwarf star.
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