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Planetary Science
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Submitted by Jgmize
from Google Reader:
I’ll be posting my long-delayed appraisal of the movie Surrogates, shortly. But meanwhile, here’s a raft of links and other cool items that remind us that -- despite efforts to turn civilization toward know-nothing foolishness, we still live in an era of enlightenment and wonders.See Shawn Otto -- one of the driving forces (Read More)
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Submitted by Coreburn
from Google Reader:
Back when I was a kid I found an old atlas that had been on the family shelves since the early 1900’s. I used to browse through it looking at all the places that had changed. The map of eastern Europe was, as you can imagine, a far cry from what it later became, with the pre-World War I world vividly sketched in those musty (Read More)
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Submitted by Coreburn
from Google Reader:
My Very Educated Mother Just Served Us Nine Pickles.--Children everywhere, up until very recentlyTaking a look at the new ring discovered around Saturn made me realize something. Most of us don't realize how full of crap our Solar System is.I don't mean planets, or moons, or comets or asteroids, although there are certainl (Read More)
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Submitted by Eemorningwood
from Google Reader:
In tonight’s episode Raj works alongside Sheldon on “The Dark Matter Problem”. In my opinion this is the biggest problem in physics today that we have a hope of solving.Vera Rubin discovers galactic dark matter. Physicists love it when theories have problems. Like pulling a stray thread on a sweater, it might give you j (Read More)
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Wired Science:
The 2009 Nobel Prize for Physics went, in part, to the inventors of the charge-coupled device George Smith and Willard Boyle this week. Their innovation, sketched out in 1969, is now the imager in millions of digital cameras and telescopes.The very first prototype, pieced together months after Smith and Boyle laid out its w (Read More)
Topics:
astronomers,
galaxies
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Planetary Society Daily Almanac:
MESSENGER's Third Gravity Assist Successful, But "Safe Mode" Interrupts Science (from Planetary News). (Read More)
Topics:
Planetary Science
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APOD:
Saturn at EquinoxHow 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 ringspoint toward the Earth andappear to disappear.The disappearing rings are no longer a mystery -- Saturn's rings are known to beso thin and theEarth is so near the (Read More)
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Submitted by Deege
from Google Reader:
In an announcement sure to cause controversy over Svensmark’s theory of cosmic ray to cloud modulation, which is said to be affecting earth’s climate. Svensmark says this is now leading to a global cooling phase. Just a couple of weeks after Svensmark’s bold announcement, NASA has announced that we have hit a new record hig (Read More)
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Submitted by Coreburn
from Google Reader:
Cassini provides us with a unique look at Saturn. Click for a slightly larger version (full res link below). Credit: NASA/JPL/Space Science Institute Cassini provides us with another unique look at Saturn.Click here for a full res version from NASA.The Cassini press release:Rhea joins other Saturnian moons in casting a sha (Read More)
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Submitted by Digiphile
from Google Reader:
A two and a half mile high wall in the rings of Saturn. Full res link below. Credit: NASA/JPL/Space Science InstituteThe Cassini spacecraft has made new findings about the Saturn ring system. Up to now the thinking has been the ring system was all but flat. Turns out the rings have “walls” and bumps that reach up to 2.5 (Read More)
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Submitted by Coreburn
from Google Reader:
The Galactic Center of the Milky Way, located about 25,000 +/- 1,000 light years from Earth, lies in the direction of the constellations Ophiuchus, Sagittarius, and Scorpio. There is very good empirical evidence that a supermassive black hole lies at the center of the Milky Way. It’s difficult to image the Center because (Read More)
Topics:
astronomers,
black hole
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Sep 10, 2009
Submitted by Deege
from Google Reader:
This gives a whole new meaning to “Total Solar Irradiance”. Instead of TSI, perhaps we should call the energy transfer that comes from the sun to the earth TSE for “Total Solar Energy” so that it includes the solar wind, the geomagnetics, and other yet undiscovered linkages. Jack Eddy is smiling and holding up the patch cor (Read More)
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MAKE Magazine:
WASHINGTON (AP) -- A refurbished U.S. space telescope is showing Earth the sharpest photos yet of cosmic beauty, complete with heavenly glows. NASA on Wednesday unveiled the first deep space photos taken by the Hubble telescope since its billion dollar repair mission earlier this year. That work included installing two new (Read More)
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Recent articles in Astronomy and Astrophysics:
Authors: E. Buenzli and H. M. Schmid A&A 504, 259 (2009) Received 30 January 2009 / Accepted 27 June 2009 Keywords: polarization, scattering, techniques: polarimetric, planetary systems, planets and satellites: general. (Read More)
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