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Astronomy Picture Of the Day (APOD)
Mountains of Titan
13.12.2006
Peering through the thick, hazy atmosphere of Saturn's largest moon, an infrared camera onboard the Cassini spacecraft recorded this view of the tallest mountains ever seen on Titan. Captured during a flyby...
A Large Tsunami Shock Wave on the Sun
12.12.2006
Tsunami's this large don't happen on Earth. One week ago, a large solar flare from an Earth-sized sunspot produced a tsunami-type shock wave that was spectacular even for the Sun. Pictured above...
Light Deposits Indicate Water Flowing on Mars
11.12.2006
What's creating light-toned deposits on Mars? Quite possibly -- water! Images of the same parts of mid-latitude Mars taken over the years but released only last week have shown unexpected new light-toned deposits where there were none before.
IC 2118: The Witch Head Nebula
10.12.2006
Double, double toil and trouble; Fire burn, and cauldron bubble -- maybe Macbeth should have consulted the Witch Head Nebula. This suggestively shaped reflection nebula is associated with the bright star Rigel in the constellation Orion.
Apollo 17 Panorama: Astronaut Running
9.12.2006
What would it be like to explore the surface of another world? In 1972 during the Apollo 17 mission, astronaut Harrison Schmitt found out first hand. In this case, the world was Earth's own Moon.
Three Planets in Dawn Skies
8.12.2006
Three children of the Sun rise in the east in this peaceful dawn skyview recorded December 7th near Bolu, Turkey. Inner planet Mercury, fresh from its second transit of the 21st century, stands highest in the bright sky at the top right. Gas giant Jupiter lies below the cloud bank near picture center.
NGC 2174: Emission Nebula in Orion
7.12.2006
A lesser known sight in the nebula-rich constellation Orion, NGC 2174 can be found with binoculars near the head of the celestial hunter. About 6,400 light-years distant, the glowing cosmic cloud surrounds loose clusters of young stars.
The Outskirts of M77
6.12.2006
Face-on spiral galaxy M77 lies a mere 60 million light-years away toward the constellation Cetus. Also known as NGC 1068, it's very bright core is well studied by astronomers exploring the mysteries of supermassive black holes in active galaxies.
Spirit Rover on Mars Imaged from Orbit
5.12.2006
If you have the right equipment, you can see the Spirit rover currently rolling across Mars. The right equipment, however, is currently limited to the High Resolution Imaging Science Experiment onboard the Mars Reconnaissance Orbiter (MRO). MRO arrived at Mars in March and just started science observations of the red planet last month.
The Antikythera Mechanism
4.12.2006
What is it? It was found at the bottom of the sea aboard an ancient Greek ship. Its seeming complexity has prompted decades of study, although many of its functions remained unknown. Recent X-rays of the device have now confirmed the nature of the Antikythera mechanism, and discovered several surprising functions.
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