Thursday 2 April 2015

Update: 3-D printer for small molecules opens access to customized chemistry

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Scientists led by Martin Burke, an HHMI early career scientist at the University of Illinois at Urbana-Champaign, used

The post Update: 3-D printer for small molecules opens access to customized chemistry has been published on Technology Org.

 
#materials 
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Hubble Finds Phantom Objects Near Dead Quasars

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NASA's Hubble Space Telescope has photographed a set of wispy, goblin-green objects that are the ephemeral ghosts of quasars that flickered to life and then faded. The eight unusual looped structures may offer insights into the puzzling behaviors of galaxies with energetic cores.

via Science Daily

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Large Hadron Collider set to restart



Graph showing the training of LHC magnets to reach their target currents for beams at 6.5 TeV. Colours represent each of the LHC's 8 sectors; x axis is time in days (Image:CERN)




After a shutdown lasting two years, the Large Hadron Collider (LHC), the world’s biggest and most powerful particle accelerator, is ready once again for the arrival of particle beams. The teams are completing the final tests after having solved on 31 March the problem that had been delaying the restart of the accelerator. The first beams could be circulating in the machine sometime between Saturday and Monday.


“We are confident of being able to restart the machine over the weekend, as all of the tests performed so far have been successful,” said Frédérick Bordry, Director for Accelerators and Technology at CERN.


When the LHC and the whole accelerator chain are running, operators work in shifts around the clock in the control room. They will attempt to circulate beams in the LHC in both directions, at their injection energy of 450 GeV, as soon as all the lights are green.


Particle collisions at an energy of 13 TeV could start as early as June.





via CERN: Updates for the general public

http://home.web.cern.ch/about/updates/2015/04/large-hadron-collider-set-restart

NASA’s MAVEN spots auroras, dust at high altitudes above Mars

Science Focus

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NASA has announced a pair of unusual findings made by its MAVEN mission, which is meant to sample Mars' atmosphere in order to help us understand its evolution. But, by orbiting through the outer edges of the atmosphere, the mission has identified some unexpected features of the area above the red planet.

The first, and easiest to understand, is the auroras. Dubbed the "Christmas Lights" because of their appearance in December of last year, the glow was in the ultraviolet range and spanned the entire Northern Hemisphere of Mars. The source of the energy was electrons accelerated out from the Sun, which were detected by another instrument on MAVEN. Because Mars lacks a magnetic field, the electrons also made it deep into the atmosphere, producing a light show that was close to the surface relative to Earth's auroras.

The dust, however, is not as easy to explain. It's been a constant, present since MAVEN first entered orbit, and ranges between 150 and 300km above the surface, with the density of particles increasing at lower altitudes. Much like the recent dust plume observed above the planet, it's not clear what could be lofting the particles from Mars' surface. "If the dust originates from the atmosphere, this suggests we are missing some fundamental process in the Martian atmosphere," said Laila Andersson of the University of Colorado.

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 » see original post http://feeds.arstechnica.com/~r/arstechnica/science/~3/YNyAK3oNZKo/
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Simulating superconducting materials with ultracold atoms

Science Focus

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Using ultracold atoms as a stand-in for electrons, a Rice University-based team of physicists has simulated superconducting materials

The post Simulating superconducting materials with ultracold atoms has been published on Technology Org.

 
#physics 
 » see original post http://feedproxy.google.com/~r/TechnologyOrgPhysicsNews/~3/EG2KE6vX7-s/
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Hubble Finds Phantom Objects Near Dead Quasars



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In 2007, Dutch schoolteacher Hanny van Arkel discovered a never-before-seen ghostly structure near a galaxy, while she was participating in an online amateur scientist project called Galaxy Zoo. The galaxy hosts a bright quasar that may have illuminated the apparition by hitting it with a beam of light from hot gas around a central black hole. Astronomers eagerly used the Hubble Space Telescope to do follow-up observations, which revealed knots of dust and gas in the "greenish blob." Assuming that this feature could offer insights into the puzzling behavior of active galaxies, Bill Keel of the University of Alabama, Tuscaloosa, initiated a search for other similar phenomenon. After all, where there's one strange blob there could be more. Keel had 200 volunteers look at archival data of 15,000 galaxies hosting quasars. In the end, he found eight other galaxies with bright active nuclei that have illuminated material far outside the radius of the galaxy. The eerie structures have looping, spiral, and braided shapes. Hubble's images show that they are like the remnants of galaxy collisions.



Join Hubble scientists for a live Hubble Hangout discussion at 3pm EDT on Thurs., April 2, to learn even more. Visit: http://hbbl.us/y6c .




via HubbleSite NewsCenter -- Latest News Releases

http://hubblesite.org/newscenter/archive/releases/2015/13/

Emission Nebula NGC 2467 in Constellation Puppis Square Stickers

Here's a great sheet of stickers featuring a beautiful image from deep space


tagged with: envelope sealers, galaxies and stars, sculptured gas clouds, enebicp, constellation puppis, ngc 2467, the stern, hot young stars, star incubator

Galaxies, Stars and Nebulae series A colourful star-forming region is featured in this stunning image of NGC 2467 located in the southern constellation of Puppis (The Stern). Looking like a roiling cauldron of some exotic cosmic brew, huge clouds of gas and dust are sprinkled with bright blue, hot young stars. Strangely shaped dust clouds, resembling spilled liquids, are silhouetted against a colourful background of glowing gas. Like the familiar Orion Nebula, NGC 2467 is a huge cloud of gas, mostly hydrogen, that serves as an incubator for new stars. Some of these youthful stars have emerged from the dense clouds where they were born and now shine brightly, hot and blue in this picture, but many others remain hidden.

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more items in the Galaxies, Stars and Nebulae series

image code: enebicp

Image credit: NASA/ESA Hubble Space Telescope.

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Orbiting a Blue Marble

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The International Space Station is as far as humans go in space these days, but it is at just the right distance to capture astonishing images of Earth.















via New York Times

The Owl and the Galaxy

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The Owl and the Galaxy sail these skies
With blue and yellow star.

They go together beneath the Big Dipper,
If you wonder where they are.

The Galaxy's light shines through the night,
Ten millions of light-years away.

But never fear the Owl is near,
Inside the Milky Way.

A cosmic shroud, the Owl is proud,
its central star a must.

And the spiral Galaxy lies on edge
To show off all its dust,
Its dust,
Its dust,
To show off all its dust.

Tomorrow's picture: pixels in space
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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
NASA Official: Phillip Newman Specific rights apply.
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A service of: ASD at NASA / GSFC
& Michigan Tech. U.

Model shows how gas giants could have survived and spun away from their star

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(Phys.org)—A new model developed by a team of researchers with member affiliations in Argentina, France and Mexico, depicts a possible scenario to explain why gas giants do not migrate into the star they are orbiting during their early stages. In their paper published in the journal Nature, the researchers note that prior efforts to build a model that could explain gas giant growth and behavior did not take tidal effects into account and thus could not show why they survived. Martin Duncan of Queen's University offers a News & Views piece on the work done by the team in the same journal issue.



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Orion Nebula Powis iPad Air 2 Case

Here's a great iPad case from Zazzle featuring a Hubble-related design. Maybe you'd like to see your name on it? Click to personalize and see what it's like!


tagged with: orion, nebula, rust, aqua, green, space, cosmic, astronomy, images, nasa, hubble

A lovely image of the Orion Nebula thanks to NASA/Hubble Space Telescope.

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Update: New carbon-capture technology captures carbon at half the energy cost

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Scientists from the University of California in Berkeley claim to have made a leap forward in carbon-capture technology.

The post Update: New carbon-capture technology captures carbon at half the energy cost has been published on Technology Org.

 
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Emission Nebula NGC 2467 in Constellation Puppis Stickers

Here's a great sheet of stickers featuring a beautiful image from deep space


tagged with: peel off, galaxies and stars, sculptured gas clouds, enebicp, constellation puppis, ngc 2467, the stern, hot young stars, star incubator

Galaxies, Stars and Nebulae series A colourful star-forming region is featured in this stunning image of NGC 2467 located in the southern constellation of Puppis (The Stern). Looking like a roiling cauldron of some exotic cosmic brew, huge clouds of gas and dust are sprinkled with bright blue, hot young stars. Strangely shaped dust clouds, resembling spilled liquids, are silhouetted against a colourful background of glowing gas. Like the familiar Orion Nebula, NGC 2467 is a huge cloud of gas, mostly hydrogen, that serves as an incubator for new stars. Some of these youthful stars have emerged from the dense clouds where they were born and now shine brightly, hot and blue in this picture, but many others remain hidden.

more items with this image
more items in the Galaxies, Stars and Nebulae series

image code: enebicp

Image credit: NASA/ESA Hubble Space Telescope.

»visit the HightonRidley store for more designs and products like this
Click to customize.
via Zazzle Astronomy market place

Star Making Region iPad Mini Cases

Here's a great iPad case from Zazzle featuring a Hubble-related design. Maybe you'd like to see your name on it? Click to personalize and see what it's like!


tagged with: space, stars, astronomy, hubble

This is a beautiful public domain picture from Hubble.

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The Zazzle Promise: We promise 100% satisfaction. If you don't absolutely love it, we'll take it back!