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Astronomy Picture Of the Day (APOD)
![Дюны на Марсе](https://images.astronet.ru/pubd/2001/02/26/0001166397/marsdunes_mgs.preview.jpg)
25.02.2001
Sand dunes on Mars can appear exotic. The dark dunes above might be compared to shark's teeth or chocolate confections. In reality, they arise from the complex relationship between the sandy surface and high winds on Mars.
![Нейтринный детектор в Сэдбери](https://images.astronet.ru/pubd/2001/05/19/0001168203/sudbury_sno.preview.jpg)
24.02.2001
Two thousand meters below the ground, a giant sphere has begun to detect nearly invisible particles. These particles, neutrinos, are extremely abundant in the universe but usually go right through just about everything. By stocking this 12-meter sphere with an unusual type of hea
![Инфракрасная Конская голова](https://images.astronet.ru/pubd/2001/02/24/0001166380/horsehead_iso2.preview.jpg)
23.02.2001
This famous cosmic dust cloud was imaged in infrared light by the European Space Agency's Infrared Space Observatory (ISO) satellite. The false-color picture shows the bright infrared emission from dust and molecular gas in part of the Orion star forming region surrounding the Horsehead Nebula.
![M55: диаграмма цвет-величина](https://images.astronet.ru/pubd/2001/02/23/0001166377/m55cmd_mochejska.preview.jpg)
22.02.2001
This color "picture" of globular star cluster M55 may not look like any star cluster you've ever seen. Still, it shows a most fundamental view for students of stellar astronomy. In the picture...
![3C294: далекое рентгеновское скопление галактик](https://images.astronet.ru/pubd/2001/02/22/0001166376/3c294_chandra.preview.jpg)
21.02.2001
Large clusters of galaxies are the most massive objects in the universe. Astronomers now realize that a hallmark of these cosmic behemoths are gas clouds with temperatures of tens of millions of degrees that pervade the clusters and radiate strongly in x-rays.
![Сверхзвуковой хлопок](https://images.astronet.ru/pubd/2001/02/21/0001166375/sonicboomplane_navy.preview.jpg)
20.02.2001
Many people have heard a sonic boom, but few have seen one. When an airplane travels at a speed faster than sound, density waves of sound emitted by the plane cannot precede the plane, and so accumulate in a cone behind the plane.
![Область звездообразования S106](https://images.astronet.ru/pubd/2001/02/20/0001166355/s106_subaru.preview.jpg)
19.02.2001
Massive star IRS4 is beginning to spread its wings. Born only about 100,000 years ago, material streaming out from this newborn star has formed the nebula dubbed Sharpless 106 Nebula (S106), pictured above.
![Тень следа Шаттла направлена к Луне](https://images.astronet.ru/pubd/2001/02/19/0001166338/sts98plume_nasa.preview.jpg)
18.02.2001
Why would the shadow of a space shuttle launch plume point toward the Moon? Two weeks ago during the launch of Atlantis, the Sun, Earth, Moon, and rocket were all properly aligned for this photogenic coincidence.
![Лунация](https://images.astronet.ru/pubd/2001/02/18/0001166327/lunation_ajc_big.preview.gif)
17.02.2001
Our Moon's appearance changes nightly. This slow-loading time-lapse sequence shows what our Moon looks like during a lunation, a complete lunar cycle. As the Moon orbits the Earth, the half illuminated by the Sun first becomes increasingly visible, then decreasingly visible. The Moon always keeps the same face toward the Earth.
![С Днем Рождения, Жюль Верн!](https://images.astronet.ru/pubd/2001/02/17/0001166326/apollo9.preview.jpg)
16.02.2001
One hundred seventy-three years ago on February 8th, Jules Verne was born in Nantes, France. Inspired by a lifelong fascination with machines, Verne wrote visionary works about "Extraordinary Voyages" including such terrestrial travels as Around the World in 80 Days, Journey to the Centre of the Earth, and Twenty Thousand Leagues Under the Sea.
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