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Astronomy Picture Of the Day (APOD)
![Марсианские долины Candor и Ophir Chasmata](https://images.astronet.ru/pubd/2003/02/18/0001186771/chasmata_viking_full.preview.jpg)
18.02.2003
First imaged by the Mariner 9 spacecraft, Valles Marineris, the grand canyon of Mars, is a system of enormous depressions called chasmata that stretch some 4,000 kilometers along the Martian equator. Looking north...
![Возраст Вселенной по микроволновому фоновому излучению](https://images.astronet.ru/pubd/2003/02/17/0001186753/galaxy_wmap.preview.jpg)
17.02.2003
The above sky map tells us the universe is 13.7 billion years old -- but how? At first look, one only sees the microwave glow of gas from our Milky Way Galaxy, coded red, and a spotty pattern of microwaves emitted from the early universe, coded in gray.
![На юго-западе Меркурия](https://images.astronet.ru/pubd/2003/02/16/0001186742/merc4_m10.preview.jpg)
16.02.2003
The planet Mercury resembles a moon. Mercury's old surface is heavily cratered like many moons. Mercury is larger than most moons but smaller than Jupiter's moon Ganymede and Saturn's moon Titan. Mercury is much denser and more massive than any moon, though, because it is made mostly of iron.
![С днем рождения, М. Жюль Верн!](https://images.astronet.ru/pubd/2003/02/16/0001186740/moonbound_apollo11.preview.jpg)
15.02.2003
One hundred seventy-five 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.
![Звездное скопление NGC 346 в форме сердца](https://images.astronet.ru/pubd/2003/02/14/0001186719/ngc346_cxo_c1.preview.jpg)
14.02.2003
Yes, it's Valentine's Day (!) and looking toward star cluster NGC 346 in our neighboring galaxy the Small Magellanic Cloud, astronomers have noted this heart-shaped cloud of hot, x-ray emitting gas in the cluster's central region.
![Туманность Орла: снимок на канадско-французско-гавайском телескопе](https://images.astronet.ru/pubd/2003/02/13/0001186709/m16_cfht.preview.jpg)
13.02.2003
Bright blue stars are still forming in the dark pillars of the Eagle Nebula. Made famous by a picture from the Hubble Space Telescope in 1995, the Eagle Nebula shows the dramatic process of star formation. To the upper right of the nebula in the above picture lies the heart of the open cluster M16.
![Анизотропия микроволнового фона во Вселенной](https://images.astronet.ru/pubd/2003/02/12/0001186688/sky_wmap.preview.jpg)
12.02.2003
Analyses of a new high-resolution map of microwave light emitted only 380,000 years after the Big Bang appear to define our universe more precisely than ever before. The eagerly awaited results from the orbiting Wilkinson Microwave Anisotropy Probe resolve several long-standing disagreements in cosmology rooted in less precise data.
![Туманность Гантель: вид с космического телескопа Хаббла](https://images.astronet.ru/pubd/2003/02/11/0001186668/m27_hst.preview.jpg)
11.02.2003
What causes unusual knots of gas and dust in planetary nebulas? Seen previously in the Ring Nebula, the Helix Nebula, and the Eskimo Nebula, the knots' existence was not predicted previously and still not well understood.
![Комета NEAT приближается к Солнцу](https://images.astronet.ru/pubd/2003/02/10/0001186647/V1Neat_spenko.preview.jpg)
10.02.2003
A comet may likely become visible to the unaided eye over the next few days above the horizon where the Sun has just set. Comet NEAT (C/ 2002 V1), discovered last November, has brightened dramatically as it approached the Sun.
![Диполь микроволнового фона: с ускорением через всю Вселенную](https://images.astronet.ru/pubd/2003/02/09/0001186531/dip_cobe_big.preview.jpg)
9.02.2003
Our Earth is not at rest. The Earth moves around the Sun. The Sun orbits the center of the Milky Way Galaxy. The Milky Way Galaxy orbits in the Local Group of Galaxies. The Local Group falls toward the Virgo Cluster of Galaxies.
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