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Science Discussions about hard science. |
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29 Sep 09, 11:23
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Join Date: Jan 2008
Location: North Canton, Ohio
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The Witch Head Nebula
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History is the version of past events that people have decided to agree upon. Napoleon Bonaparte
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BoRG
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"I am Arthur, King of the Britons!"
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29 Sep 09, 11:23
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Join Date: Sep 2004
Location: Colorado Rocky Mts, USA
Posts: 71,046
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Ganymede
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Quis Custodiet Ipsos Custodes? Who is watching the watchers?
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29 Sep 09, 11:29
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Join Date: Sep 2004
Location: Colorado Rocky Mts, USA
Posts: 71,046
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Chameleon Dark Nebula
I think this one is eerily beautiful:

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Quis Custodiet Ipsos Custodes? Who is watching the watchers?
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29 Sep 09, 14:13
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Real Name: Daniel
Join Date: Jan 2009
Location: The Great State of Texas
Posts: 4,045
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It makes me think of powdered sugar on fudge.
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29 Sep 09, 15:08
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Join Date: Sep 2004
Location: Colorado Rocky Mts, USA
Posts: 71,046
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Kind of does, doesn't it? 
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Quis Custodiet Ipsos Custodes? Who is watching the watchers?
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01 Oct 09, 07:07
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Real Name: Mr Sparkle !!!!
Join Date: Aug 2007
Location: Springfield
Posts: 9,034
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The constellation of Orion holds much more than three stars in a row. A deep exposure shows everything from dark nebula to star clusters, all imbedded in an extended patch of gaseous wisps in the greater Orion Molecular Cloud Complex. The brightest three stars on the far left are indeed the famous three stars that make up the belt of Orion. Just below Alnitak, the lowest of the three belt stars, is the Flame Nebula, glowing with excited hydrogen gas and immersed in filaments of dark brown dust. Below the frame center and just to the right of Alnitak lies the Horsehead Nebula, a dark indentation of dense dust that has perhaps the most recognized nebular shapes on the sky. On the upper right lies M42, the Orion Nebula, an energetic caldron of tumultuous gas, visible to the unaided eye, that is giving birth to a new open cluster of stars. Immediately to the left of M42 is a prominent bluish reflection nebula sometimes called the Running Man that houses many bright blue stars. The above image, a digitally stitched composite taken over several nights, covers an area with objects that are roughly 1,500 light years away and spans about 75 light years.
http://apod.nasa.gov/apod/ap090929.html
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01 Oct 09, 07:08
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Real Name: Mr Sparkle !!!!
Join Date: Aug 2007
Location: Springfield
Posts: 9,034
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How would Saturn look if its ring plane pointed right at the Sun? Before last month, nobody knew. Every 15 years, as seen from Earth, Saturn's rings point toward the Earth and appear to disappear. The disappearing rings are no longer a mystery -- Saturn's rings are known to be so thin and the Earth is so near the Sun that when the rings point toward the Sun, they also point nearly edge-on at the Earth. Fortunately, in this third millennium, humanity is advanced enough to have a spacecraft that can see the rings during equinox from the side. Last month, that Saturn-orbiting spacecraft, Cassini, was able to snap a series of unprecedented pictures of Saturn's rings during equinox. A digital composite of 75 such images is shown above. The rings appear unusually dark, and a very thin ring shadow line can be made out on Saturn's cloud-tops. Objects sticking out of the ring plane are brightly illuminated and cast long shadows. Inspection of these images may help humanity understand the specific sizes of Saturn's ring particles and the general dynamics of orbital motion.
http://apod.nasa.gov/apod/ap090930.html
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01 Oct 09, 10:51
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Join Date: Sep 2004
Location: Colorado Rocky Mts, USA
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Carina Nebula
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Quis Custodiet Ipsos Custodes? Who is watching the watchers?
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07 Oct 09, 13:37
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Join Date: Sep 2004
Location: Colorado Rocky Mts, USA
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Messenger Image Of Double Crater On Mercury
Mercury looks like the Moon, only a little worse in places. The double impact ring is a remarkable coincidence, though. The odds must be...astronomical! 
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Quis Custodiet Ipsos Custodes? Who is watching the watchers?
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07 Oct 09, 15:01
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Join Date: Jan 2008
Location: North Canton, Ohio
Posts: 13,851
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Bipolar Cloud NGC 6164-5
__________________
History is the version of past events that people have decided to agree upon. Napoleon Bonaparte
_________
BoRG
__________
"I am Arthur, King of the Britons!"
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07 Oct 09, 15:32
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Join Date: Sep 2004
Location: Colorado Rocky Mts, USA
Posts: 71,046
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A manic-depressive nebula? That's a lot of Depakote! 
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Quis Custodiet Ipsos Custodes? Who is watching the watchers?
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09 Oct 09, 15:46
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Join Date: Sep 2004
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Starburst Galaxy
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Quis Custodiet Ipsos Custodes? Who is watching the watchers?
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13 Oct 09, 13:48
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Join Date: Sep 2004
Location: Colorado Rocky Mts, USA
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Iapetus - Saturn's Dusty Child
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Quis Custodiet Ipsos Custodes? Who is watching the watchers?
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14 Oct 09, 11:04
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Join Date: Sep 2004
Location: Colorado Rocky Mts, USA
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Pleiades
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Quis Custodiet Ipsos Custodes? Who is watching the watchers?
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17 Oct 09, 07:50
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Real Name: Mr Sparkle !!!!
Join Date: Aug 2007
Location: Springfield
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..might as well be standing on planet earth i guess..!
Landing on Mars in January, NASA's twin rovers Spirit and Opportunity have now each spent over 330 sols roving the martian surface. Still healthy and well in to extended missions, the golfcart sized robots have operated five times longer than planned. Ranging across the floor of Gusev crater, the Spirit rover has reached the Columbia Hills and journeyed nearly four kilometers. Half a planet away, Opportunity has spent much of its tour on Meridiani Planum exploring the 130 meter wide Endurance Crater. Opportunity recently returned this panoramic view of rock outcrops and steep crater walls. Both rovers have uncovered strong evidence that ancient salty oceans left their mark on the alluring Red Planet.
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