Monday 31 August 2015

Researchers build, morph chemical patterns on stretchable surfaces

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With just a slight stretch of the imagination — and some elastic material — UNL researchers have shown

The post Researchers build, morph chemical patterns on stretchable surfaces has been published on Technology Org.

 
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Backpacking Poster

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Backpacking, Space Shuttle Creator/Photographer: NASA

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There will never be another space race

Science Focus

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Ellen Stofan, NASA's chief scientist, saw her first rocket launch at age 4. Her father worked at NASA as an engineer, and the thrill of space exploration captured her imagination from an early age. But at a Future Tense film screening of The Dish in Washington D.C. last week, Stofan acknowledged that for many people she meets, what first sparked a space obsession was the Apollo program — President John F. Kennedy's audacious commitment in 1961 to putting Americans on the moon before the end of the decade.

Today, NASA's goal to put astronauts on Mars by the 2030s could be a similarly unifying project. And not only in the United States. A far cry from the fierce Cold War Space Race between the U.S. and the Soviet Union, exploration in the 21st century is likely to be a far more globally collaborative project.

Why has the idea of reaching Mars captured the world? A trip to Mars is a priority for many scientific reasons — some believe it's the planet that most resembles our own, and one that could answer the age-old question of whether we're alone in the universe — but there's also been a long popular fascination with the planet, Stofan observed. Ever since Giovanni Virginio Schiaparelli first observed the canali on Mars in the 1800s or when H.G. Wells wrote about aliens from Mars in his 1898 science fiction novel, The War of the Worlds, the planet has loomed large in the public's imagination.

And perhaps it's this historic obsession that partly explains the more international effort: the U.S. is hardly the only country dreaming of deep space — and a trip to Mars — these days. India has plans to put astronauts in the sky, Japan just launched a spacecraft to collect asteroid samples, and of course, the European Space Agency had the recent, hugely successful Rosetta mission and Philae lander. It seems that what Apollo did for America's imagination and spirit of invention, foreign space programs can also do domestically. "You see countries like India really investing in their space program because they see it as inspirational and good for their economy," Stofan told the audience.

The truth is, as Stofan put it, "When we go to explore, we do it as a globe." In a conversation outside the event, she recounted the stories of some of the astronauts featured in the 2007 documentary, In the Shadow of the Moon, who travelled the world after they returned from the Apollo missions of the 1960s and 70s. People from all sorts of countries welcomed them, not just as Americans, but as "our astronauts".

"People see space as a place where you go and cooperate," she told me.

This spirit of trans-border ownership and investment seems set to continue. One key part of this is the Global Exploration Roadmap, an effort between space agencies like NASA, France's Centre National d'Etudes Spatiales, the Canadian Space Agency, and the Japan Aerospace Exploration Agency, among many others, that is intended to aid joint projects from the International Space Station to expeditions to the Moon and near-Earth asteroids — and of course, to reach Mars. On a recent trip to India's space agency, Stofan recounted to me, she met with many Indian engineers who were just as excited as the Americans to get scientists up there, not only to explore, but also to begin nailing down the question of whether there was ever life on the red planet.

It's also clear that the next stage of space exploration will not only be more global, but will equally involve greater private and public partnerships. Companies like Space X and Boeing are increasingly involved in NASA's day to day operations, including a joint project that could carry astronauts into space in 2017. NASA's view is to turn over to the private sector those projects that in a sense have become routine, Stofan suggested, and let NASA focus its resources on getting to Mars.

This environment feels a lot different from the secretive and adversarial Space Race days, when the U.S. and Soviet Union battled to reach the moon first. What's changed? The Cold War is over, of course, but with it, the funding commitment may also be missing this time around. Stofan mentioned, in response to an audience question, that at the time of the Apollo missions, NASA got up to about 4 percent of the federal budget, while now it's only around 0.4 percent. The dollars are still large, of course, but perhaps increased international and private cooperation can be seen as an efficient, clever way to do more with less.

So, what does the future hold? NASA is extremely focused on how to get to Mars and back again safely, Stofan told the audience, but the fun role of science fiction, she suggested, is to start envisioning what the steps after that might be. For example, what it might be like to live on Mars? After all, science often gets its inspiration from the creative world. Just look at how similar mobile phones are to the communicators from Star Trek, she pointed out, or the fact that MIT students made a real life version of the robotic sphere that Luke Skywalker trains with in Star Wars. "Stories are a great counterpoint to science."

What would Stofan like to see on the big screen next? "The Martian. I think it's being made into a movie in already. And I wish someone would redo The Dune."

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 » see original post http://theweek.com/articles/441556/there-never-another-space-race
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Monogram Cats Eye Nebula Oval Sticker

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


tagged with: nebulae, amazing astronomy images, tcenebnch, hubble chandra images, cats eye nebula, stellar evolution, dying star, red giant evolution, galaxies, monogram initials, monogrammed, nasa, initialled

Galaxies, Stars and Nebulae series A gorgeous design featuring a composite image of the Cat's Eye nebula from NASA's Chandra X-ray Observatory and the Hubble Space Telescope.
This famous nebula represents a phase of stellar evolution after a star like our Sun runs out of fuel. In this phase, a star becomes an expanding red giant and sheds some of its outer layers, eventually leaving behind a hot core that collapses to form a dense white dwarf star. A fast wind emanating from the hot core rams into the ejected atmosphere, pushes it outward, and creates the graceful filamentary structures.
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image code: tcenebnch

Image credit: NASA/Chandra www.nasa.gov

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Pluto in Enhanced Color

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Zazzle Space Gifts for young and old

Photographers, capture behind-the-scenes at CERN

Imaging lensed, distant galaxies with the large millimeter telescope

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In the 1980's, observations of nearby galaxies made with the Infrared Astronomical Satellite, along with observations of the far-infrared /submillimeter background with the Cosmic Background Explorer satellite, showed that the universe emits about as much energy density at infrared and submillimeter wavelengths as it does at optical and ultraviolet wavebands. Where does it all come from? A breakthrough came with the discovery of a large population of sources very bright at submillimeter wavelengths at large cosmic distances. These so-called submillimeter selected galaxies (SMGs) have luminosities hundreds of times larger than that of the Milky Way, powered in part by star formation. Identifying and understanding the nature of these sources has, however, proven to be challenging because they are so distant and hence smaller in angular size than most single telescopes can resolve.

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Hubble's Sharpest View of .. DODO iPad Folio Case

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Hubble's Sharpest View of the Orion Nebula. Thousands of stars are forming in the cloud of gas and dust known as the Orion nebula. More than 3,000 stars of various sizes appear in this image. Some of them have never been seen in visible light. Credit: NASA,ESA, M. Robberto (Space Telescope Science Institute/ESA) and the Hubble Space Telescope Orion Treasury Project Team

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Monogram Trifid Nebula, Messier 16 Oval Sticker

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


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Galaxies, Stars and Nebulae series A fantastic picture from our universe featuring the massive star factory known as the Trifid Nebula.

It was captured in all its glory with the Wide-Field Imager camera attached to the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in northern Chile.
So named for the dark dust bands that trisect its glowing heart, the Trifid Nebula is a rare combination of three nebulae types that reveal the fury of freshly formed stars and point to more star birth in the future. The field of view of the image is approximately 13 x 17 arcminutes.
It's an awe-inspiring, breathtaking image that reveals some of the wonder that is our universe.

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image code: trfdnbl

ESO/J. Emerson/VISTA www.eso.org
Reproduced under the Creative Commons Attribution 3.0 Unported license.

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Tarantula Nebula Wall Decal

Here's a great wall decal featuring a beautiful image from deep space


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Tarantula Nebula

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