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Astronomy Picture Of the Day (APOD)
An Unusually Smooth Surface on Saturns Telesto
22.02.2006
Why is Saturn's small moon Telesto so smooth? Possibly Telesto is covered with a type of granular icy material similar to that suspected of covering Pandora, another of Saturn's small moon's. If so, Telesto might be more like a pile of rubble than a solid body.
Wisps Surrounding the Horsehead Nebula
21.02.2006
The famous Horsehead Nebula in Orion is not alone. A deep exposure shows that the dark familiar shaped indentation, visible just below center, is part of a vast complex of absorbing dust and glowing gas.
SuitSat1: A Spacesuit Floats Free
20.02.2006
Who dunnit? Like a scene from a space mystery movie, a spacesuit floated away from the International Space Station earlier this month, but no investigation was needed. It was pushed out by the space station crew.
M51: The Whirlpool Galaxy in Dust and Stars
19.02.2006
The Whirlpool Galaxy is a classic spiral galaxy. At only 30 million light years distant and fully 60 thousand light years across, M51, also known as NGC 5194, is one of the brightest and most picturesque galaxies on the sky.
Mir Dreams
18.02.2006
This dream-like image of Mir was recorded by astronauts as the space shuttle orbiter Atlantis approached the Russian space station prior to docking during the STS-76 mission in 1996. Sporting spindly appendages and solar...
Supernova Remnant and Shock Wave
17.02.2006
A massive star ends life as a supernova, blasting its outer layers back to interstellar space. The spectacular death explosion is initiated by the collapse of what has become an impossibly dense stellar core. Pictured is the expanding supernova remnant Puppis A - one of the brightest sources in the x-ray sky.
The Color of the Moon
16.02.2006
Earth's Moon is normally seen in subtle shades of grey or yellow. But small color differences have been greatly exaggerated to make this dramatic mosaic image of the Moon's gibbous phase. The familiar Sea of Tranquility (Mare Tranquillitatis) is the blue area right of center.
Rotating Titan in Infrared Light
15.02.2006
Titan is one of the strangest places in our Solar System. The only moon known with thick clouds, this unusual satellite of Saturn shows evidence of evaporating lakes created by methane rain. The clouds...
Dust and Light in the Rosette Nebula
14.02.2006
What creates the cosmic dust sculptures in the Rosette Nebula? Noted for the common beauty of its overall shape, parts of the Rosette Nebula, also known as NGC 2244, show beauty even when viewed up close.
The N44 Emission Nebula
13.02.2006
N44 is one of the largest and most intricate nebulas in this part of the universe. Located in our galactic neighbor the Large Magellanic Cloud, N44 houses numerous massive bright stars, lengthy lanes of dark dust, and vast clouds of hydrogen gas that glows red.
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