Wednesday 8 October 2014

Rooting out horse-meat fraud in the wake of a recent food scandal

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As the United Kingdom forms a new crime unit designed to fight food fraud — in response to

The post Rooting out horse-meat fraud in the wake of a recent food scandal has been published on Technology Org.

 
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Impossibly bright dead star: X-ray source in the Cigar Galaxy is the first ultraluminous pulsar ever detected

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Astronomers working with NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) have found a pulsating dead star beaming with the energy of about 10 million suns. The object, previously thought to be a black hole because it is so powerful, is in fact a pulsar -- the incredibly dense rotating remains of a star.

via Science Daily

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Galileo quote poster

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Would you rather go blind or lose your mind?

Science Focus

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One morning in college, James Jorkasky woke up and couldn't see out of his left eye. A vessel near the eye's optic nerve had leaked, and his vision was blocked by blood.

"I didn't know what was going to happen," he says. "I was getting ready to start my senior year. I was pre-med. The first thing I thought was that my life was over."

Fortunately, the leak healed. Jorkasky's vision returned, and he quickly jumped back into his studies. But the incident stuck with him. Now the executive director of the National Alliance for Eye and Vision Research, he says the fear he felt that morning motivated...

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 » see original post http://theweek.com/article/index/268858/would-you-rather-go-blind-or-lose-your-mind
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Files to 'print your own' comet

Science Focus

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The European Space Agency releases a shape model of Comet 67P/Churyumov-Gerasimenko, which, among other things, allows enthusiasts to print their own 3D version of the "ice mountain". 
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 » see original post http://www.bbc.co.uk/news/science-environment-29482548#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa
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5 legitimate scientific controversies

Science Focus

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With our minute-by-minute news cycle and omnipresent social media, you'd be excused for thinking evolution and climate change are hot controversies among scientists. They're not: Darwin's theory and evidence of global warming are well established and accepted by the vast majority of researchers. But tackling real controversies head-on is at the heart of the scientific process. These five ongoing debates are just a few of the contentious conversations that continue to perplex and intrigue scientists today.

1. How should we measure quantum mechanics?

Measurement is everything in quantum mechanics...

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 » see original post http://theweek.com/article/index/264691/5-legitimate-scientific-controversies
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Out There: How to Make a Black Hole

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Gamma-ray bursts are thought to be the final step by which stars sink into oblivion.















via New York Times

Name, The Swan, Constellation Cygnus space image Gift Wrapping Paper

Get your out-of-this-world gift wrap here! Perfect for Christmas gifts for anyone who is fascinated by what the universe holds in store for us!


tagged with: star nurseries, new star s106ir, outer space, universe, hubble images, cygnus constellation, the swan, star galaxies, star birth, hrbstslr cygsb, young hot stars, interstellar gas clouds, star forming activity, glowing hydrogen, turbulence

Galaxies, Stars and Nebulae series A gorgeous star forming region in Constellation Cygnus (The Swan). This Hubble image shows a dust-rich, interstellar gas cloud with a new-born star in the centre of the hour-glass shape. The glowing blue of the hydrogen in this nebula is due to the jets being emitted from the forming star as dust falls into into it and this causes the heating and turbulence of the hydrogen. The star, known as S106 IR, is reaching the end of its birth and will soon enter the much quieter period of adulthood known as the main stage.
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image code: cygsb

Image credit: NASA, the Hubble Heritage Team (AURA/STScI) and ESA

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Monogram - Cigar Galaxy - Messier 82 Round Sticker

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Galaxies, Stars and Nebulae series

Composite of images of the active galaxy Messier 82 from the three Great Observatories: Hubble Space Telescope, Chandra X-Ray Observatory, and Spitzer Space Telescope. X-ray data recorded by Chandra appears here in blue, infrared light recorded by Spitzer appears in red. Hubble's observation of hydrogen emission appears in orange. Hubble's bluest observation appears in yellow-green.

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Image code: agmet

Image credit: Hubble Space Telescope, Chandra X-Ray Observatory, Spitzer Space Telescope

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NGC 6823: Cloud Sculpting Star Cluster

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CHESS X-rays show how to grow crystals from crystals

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(Phys.org) —Way too small to see, nanocrystals – tiny crystals that are at least 1,000 times smaller than the diameter of a human hair – exhibit unprecedented properties that intrigue scientists and engineers. To apply these materials in emerging nanotechnologies, scientists need to better understand their structure, their corresponding functions and how they pack together.



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Light Echo from Star V838 iPad Mini Cases

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"[This is] the most recent NASA Hubble Space Telescope view of an unusual phenomenon in space called a light echo. Light from a star that erupted nearly five years ago continues propagating outward through a cloud of dust surrounding the star. The light reflects or "echoes" off the dust and then travels to Earth."

(qtd. from HubbleSite.org NewsCenter release STScI-2006-50)

Credit: NASA, ESA, and H. Bond (STScI)

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Lutetia’s dark side hosts hidden crater

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Grooves found on Lutetia, an asteroid encountered by ESA’s Rosetta spacecraft, point to the existence of a large impact crater on the unseen side of the rocky world.




via ESA Space Science

http://www.esa.int/Our_Activities/Space_Science/Rosetta/Lutetia_s_dark_side_hosts_hidden_crater

TEDed animates clouds and cosmic rays

Soft design for a sustainable world

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“Around the world at unprecedented rates, people are moving from the country to the city,” says Sheila Kennedy,

The post Soft design for a sustainable world has been published on Technology Org.

 
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What is the upper limit for massive stars?

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Yesterday I mentioned that hypernovae (super-supernovae) are the result of the explosion of a star that's about as massive as a star can be (about 150-200 solar masses). But how exactly do we know that this is an upper limit?



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Galileo quote posters

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Name, Carina Nebula, Gas-cloud outer space image Wrapping Paper

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tagged with: star forming activity, star nurseries, stellar winds, young hot stars, carina nebula, galaxy stars, hubble space photography, gas clouds, outer space sculpture, hrbstslr cnbigc

Galaxies, Stars and Nebulae series A beautiful space photograph featuring the 7500 light year distant Carina Nebula. This Hubble image shows rich, interstellar gas clouds feeding the formation of new stars. As a proto star forms, the gas clouds get dragged to its surface and some gets emitted as tight jets of material travelling at hundreds of miles per second. These in turn help sculpt the gas clouds into weird and grotesque shapes, some looking like strange worms, swimming through space.
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image code: cnbigc

Image credit: NASA, the Hubble Heritage Team (AURA/STScI) and ESA

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Carina Nebula in Argo Navis constellation Sticker

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Galaxies, Stars and Nebulae series Hubble's view of the Carina Nebula shows star birth in a new level of detail. The fantasy-like landscape of the nebula is sculpted by the action of outflowing winds and scorching ultraviolet radiation from the monster stars that inhabit this inferno. In the process, these stars are shredding the surrounding material that is the last vestige of the giant cloud from which the stars were born. The immense nebula is an estimated 7,500 light-years away in the southern constellation Carina the Keel (of the old southern constellation Argo Navis, the ship of Jason and the Argonauts, from Greek mythology).
The original image is a mosaic of the Carina Nebula assembled from 48 frames taken with Hubble Space Telescope's Advanced Camera for Surveys. The Hubble images were taken in the light of ionized hydrogen. Colour information was added with data taken at the Cerro Tololo Inter-American Observatory in Chile. Red corresponds to sulfur, green to hydrogen, and blue to oxygen emission.

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image code: carnebngcttst

Image credit: Hubble Space Telescope; colour data from the Cerro Tololo Inter-American Observatory, Chile

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Dwarf Galaxy Holmberg IX iPad Mini Covers

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"This loose collection of stars is actually a dwarf irregular galaxy, called Holmberg IX. It resides just off the outer edge of M81, a large spiral galaxy in Ursa Major. This image was taken with Hubble's Advanced Camera for Surveys in early 2006. Holmberg IX is of the so-called Magellanic type of galaxy, as its size and irregularity in structure are similar to the Small Magellanic Cloud, a neighbor to our own Milky Way. Holmberg IX was first discovered by astronomer Sidney van den Bergh in 1959, and cataloged as DDO 66. The galaxy received its "Holmberg IX" naming when it was discussed in Eric Holmberg's study of groups of galaxies ten years later. It is suspected that the dwarf galaxy was created as a result of a galactic interaction between M81 and neighboring galaxy M82."

(qtd. from Hubblesite.org NewsCenter release STScI-2008-02)

Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)

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