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Astronomy Picture Of the Day (APOD)
![Вспышка Челябинского метеора](http://images.astronet.ru/pubd/2013/02/24/0001280863/Ahmetvaleev_MG_7083_900.preview.jpg)
23.02.2013
A meteoroid fell to Earth on February 15, streaking some 20 to 30 kilometers above the city of Chelyabinsk, Russia at 9:20am local time. Initially traveling at about 20 kilometers per second, its explosive deceleration after impact with the lower atmosphere created a flash brighter than the Sun.
![Кьюриосити: панорама с автопортретом](http://images.astronet.ru/pubd/2013/02/24/0001280794/curiosity_sol-177bodrov600.preview.jpg)
22.02.2013
This remarkable self-portrait of NASA's Mars Curiosity Rover includes a sweeping panoramic view of its current location in the Yellowknife Bay region of the Red Planet's Gale Crater. The rover's flat, rocky perch, known as "John Klein", served as the site for Curiosity's first rock drilling activity.
![Гравитационный тягач](http://images.astronet.ru/pubd/2013/02/21/0001280615/gravtug_durda.preview.jpg)
21.02.2013
How would you change the course of an Earth-threatening asteroid? One possibility - a massive spacecraft that uses gravity as a towline - is illustrated in this artist's vision of a gravitational tractor in action.
![Шестиугольник и кольца Сатурна](http://images.astronet.ru/pubd/2013/02/20/0001280480/ringshexagon_cassini_960.preview.jpg)
20.02.2013
Why would clouds form a hexagon on Saturn? Nobody is sure. Originally discovered during the Voyager flybys of Saturn in the 1980s, nobody has ever seen anything like it anywhere else in the Solar System.
![Меркурий на горизонте](http://images.astronet.ru/pubd/2013/02/19/0001280412/mercurysky_casado_960.preview.jpg)
19.02.2013
Have you ever seen the planet Mercury? Because Mercury orbits so close to the Sun, it never wanders far from the Sun in Earth's sky. If trailing the Sun, Mercury will be visible low on the horizon for only a short while after sunset.
![Большой русский метеор 2013 года](http://images.astronet.ru/pubd/2013/02/18/0001280318/chelyabinsk_meteor.preview.png)
18.02.2013
What in heaven's blazes is that? Thousands of people living near the Ural Mountains in Russia saw last Friday morning one of the more spectacular meteors of modern times streak across the sky. Forceful sound waves arrived at the ground minutes later, knocking people over and breaking windows for hundreds of kilometers.
![Астероид 2012 DA14 пролетает около Земли](http://images.astronet.ru/pubd/2013/02/17/0001280259/asteroid.preview.jpg)
17.02.2013
There it goes. That small spot moving in front of background stars in the above video is a potentially dangerous asteroid passing above the Earth's atmosphere. This past Friday, the 50-meter wide asteroid...
![Пролетая по южному небу](http://images.astronet.ru/pubd/2013/02/16/0001280181/CherneyLemmonSMC.preview.jpg)
16.02.2013
For now, Comet Lemmon (C/2012 F6a), and Comet PanSTARRS (C/2011 L4) are sweeping through southern skies. Lemmon's lime green coma and thin tail are near the left edge of this telephoto scene, a single frame from a timelapse video (vimeo here) recorded on February 12, tracking its motion against the background stars.
![Тени на Юпитере](http://images.astronet.ru/pubd/2013/02/15/0001280095/Jup2013_01_03peach900.preview.jpg)
15.02.2013
Two dark shadows loom across the banded and mottled cloud tops of Jupiter in this sharp telescopic view. In fact, captured on January 3rd, about a month after the ruling gas giant appeared at opposition in planet Earth's sky, the scene includes the shadow casters.
![Портрет Солнечной системы](http://images.astronet.ru/pubd/2013/02/14/0001279992/ssportrait_vg1.preview.jpg)
14.02.2013
On another Valentine's Day (February 14, 1990), cruising four billion miles from the Sun, the Voyager 1 spacecraft looked back to make this first ever family portrait of our Solar System. The complete portrait is a 60 frame mosaic made from a vantage point 32 degrees above the ecliptic plane.
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