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Astronomy Picture Of the Day (APOD)
![За два часа до подлета к Нептуну](https://images.astronet.ru/pubd/2002/09/23/0001179842/neptuneclouds_vg2.preview.jpg)
22.09.2002
Two hours before closest approach to Neptune in 1989, the Voyager 2 robot spacecraft snapped this picture. Clearly visible for the first time were long light-colored cirrus-type clouds floating high in Neptune's atmosphere. Shadows of these clouds can even be seen on lower cloud decks.
![Заход Луны на планете Земля](https://images.astronet.ru/pubd/2002/09/23/0001179841/moonset_sts35.preview.jpg)
21.09.2002
During the Astro-1 astronomy mission of December, 1990, Space Shuttle astronauts photographed this stunning view of the setting full moon poised above the Earth's limb. In the foreground, towering clouds of condensing water vapor mark the extent of the troposphere, the lowest layer of the planet's life-sustaining atmosphere.
![Пульсар и движение газа в Крабовидной туманности](https://images.astronet.ru/pubd/2002/09/20/0001179815/crabshrug_rox_big.preview.jpg)
20.09.2002
How does a city-sized neutron star power the vast Crab Nebula? The expulsion of wisps of hot gas at high speeds appears to be at least part of the answer. Yesterday time-lapse movies taken...
![Астероид 1998 KY26](https://images.astronet.ru/pubd/2002/09/19/0001179805/1998ky26_one_ostro.preview.jpg)
19.09.2002
A day is just under 11 minutes long on 1998 KY26, a 30 meter wide, fast-spinning, water-rich asteroid. This computer simulated view of its lumpy surface has a resolution of about 3 meters and is based on radar and optical observations (click on the image for a series of surface views).
![Вид звездного неба в Стрельце](https://images.astronet.ru/pubd/2002/09/18/0001179789/m17region_uks022_big.preview.jpg)
18.09.2002
Many vast star fields in the plane of our Milky Way Galaxy are rich in clouds of stars, dust, and gas. First and foremost, visible in the above picture are millions of stars, many of which are similar to our Sun.
![Сила из пустого пространства: эффект Казимира](https://images.astronet.ru/pubd/2002/10/21/0001180536/casimirsphere_mohideen.preview.jpg)
17.09.2002
This tiny ball provides evidence that the universe will expand forever. Measuring slightly over one tenth of a millimeter, the ball moves toward a smooth plate in response to energy fluctuations in the vacuum of empty space.
![Подготовка к запуску ракеты Атлас V](https://images.astronet.ru/pubd/2002/09/16/0001179693/atlas5_rc.preview.jpg)
16.09.2002
The first launch of an Atlas V rocket occurred last month. The Atlas V, built by Lockheed Martin, is the first rocket in the U. S. Air Force's Evolved Expendable Launch Vehicle program. Rockets in this program can carry increasingly heavy payloads by just adding more boosters.
![Зодиакальный свет и ложный рассвет](https://images.astronet.ru/pubd/2002/09/16/0001179691/zodiacal_nsl.preview.jpg)
15.09.2002
An unusual triangle of light will be particularly bright near the eastern horizon before sunrise during the next two months for observers in Earth's northern hemisphere. Once considered a false dawn, this triangle of light is actually Zodiacal Light, light reflected from interplanetary dust particles.
![Луна в рентгеновских лучах](https://images.astronet.ru/pubd/2002/09/16/0001179692/rosat_moon.preview.jpg)
14.09.2002
This x-ray image of the Moon was made by the orbiting ROSAT (Röntgensatellit) Observatory in 1990. In this digital picture, pixel brightness corresponds to x-ray intensity. Consider the image in three parts: the bright hemisphere of the x-ray moon, the darker half of the moon, and the x-ray sky background.
![Плато Аристарх](https://images.astronet.ru/pubd/2002/09/13/0001179634/aristarchus_croman_c1.preview.jpg)
13.09.2002
Anchored in the vast lava flows of the Moon's Oceanus Procellarum lies the Aristarchus Plateau. Recorded from a backyard observatory on planet Earth, this sharp, amazingly colorful view nicely captures the geologically diverse area, including the brownish plateau, Aristarchus and Herodotus craters, and the meandering Vallis Schroteri.
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