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    July 05

    Ice on fire: The next fossil fuel

    DEEP in the Arctic Circle, in the Messoyakha gas field of western Siberia, lies a mystery. Back in 1970, Russian engineers began pumping natural gas from beneath the permafrost and piping it east across the tundra to the Norilsk metal smelter, the biggest industrial enterprise in the Arctic.

    By the late 70s, they were on the brink of winding down the operation. According to their surveys, they had sapped nearly all the methane from the deposit. But despite their estimates, the gas just kept on coming. The field continues to power Norilsk today.

    Where is this methane coming from? The Soviet geologists initially thought it was leaking from another deposit hidden beneath the first. But their experiments revealed the opposite - the mystery methane is seeping into the well from the icy permafrost above...Read full article

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    April 11

    Is This the Future of the Digital Book? Top of Form


    By BRAD STONE

    Published: April 4, 2009

    PLENTY of authors dream of writing the great American novel.

    Noah Berger for The New York Times

    Bradley Inman is starting Vook, a platform for e-books that will combine text, video and social networking. Vook.tv is pushing an alternate vision of the future of books (compared to what Amazon and Sony are with the Kindle and Sony Reader).

    Bradley Inman wants to create great fiction, dramatic online video and compelling Twitter stream — and then roll them all into a multimedia hybrid that is tailored to the rapidly growing number of digital reading devices. …More… article on Vook 

    March 21

    Why Money Messes With Your Mind


    Money has a far more complex grip on us than most economists are willing to admit. In these cash-strapped times, perhaps an insight into the psychology of money can improve the way we deal with it...MORE

    March 17

    Indian scientists find three new bacteria in upper stratosphere

     Indian scientists have discovered three new species of bacteria in the upper atmosphere. The bacteria, highly resistant to ultra-violet radiation, are not found elsewhere on Earth, leading to speculation on whether they are extra-terrestrial in origin.

    The Indian Space Research Organisation announced Monday that the bacteria had been found in the upper stratosphere.

    'All the three newly identified species had significantly higher UV resistance compared to their nearest phylogenetic neighbours. One of the three, identified as a member of the genus Janibacter, has been named Janibacter hoylei, the second Bacillus isronensis, and the third Bacillus aryabhata,' ISRO said in a release.

    'While the present study does not conclusively establish the extra-terrestrial origin of microorganisms, it does provide positive encouragement to continue the work in our quest to explore the origin of life,' it said, adding: 'The precautionary measures and controls operating in this experiment inspire confidence that these species were picked up in the stratosphere.'

    Janibacter hoylei is named after the distinguished Astrophysicist Fred Hoyle, Bacillus isronensis in recognition of ISRO's contribution in the balloon experiments which led to its discovery and Bacillus aryabhata after India's celebrated ancient astronomer Aryabhata. India's first satellite was also named after Aryabhata.

    The release said the experiment was conducted using a 26.7 million cubic feet balloon carrying a 459 kg scientific payload soaked in 38 kg of liquid neon.

    The balloon was flown from the National Balloon Facility in Hyderabad, operated by the Tata Institute of Fundamental Research (TIFR). The release did not give the date when the balloon was flown.

    'The payload consisted of a cryosampler containing 16 evacuated and sterilised stainless steel probes. Throughout the flight, the probes remained immersed in liquid neon to create a cryopump effect. These cylinders, after collecting air samples from different heights ranging from 20 km to 41 km, were parachuted down and safely retrieved.

    'These samples were analysed by scientists at the Centre for Cellular Publish entryand Molecular Biology, Hyderabad as well as the National Centre for Cell Science (NCCS), Pune for independent examination, ensuring that both laboratories followed similar protocols to achieve homogeneity of procedure and interpretation,' it said.

    The experiment detected 12 bacterial and six fungal colonies, nine of which showed greater than 98 percent similarity with known species on Earth. 'Three bacterial colonies were, however, totally new species,' the release said.

    Jayant Narlikar from the Inter-University Centre for Astronomy and Astrophysics, Pune was the principal investigator and scientists U.R. Rao from ISRO and P.M. Bhargava from Anveshna supported as mentors of the experiment, the release said.

    'This was the second such experiment conducted by ISRO, the first one being in 2001. Even though the first experiment had yielded positive results, it was decided to repeat the experiment by exercising extra care to ensure that it was totally free from any terrestrial contamination,' ISRO said.

    March 08

    How your looks betray your personality

    The idea that a person's character can be glimpsed in their face dates back to the ancient Greeks. It was most famously popularised in the late 18th century by the Swiss poet Johann Lavater, whose ideas became a talking point in intellectual circles. In Darwin's day, they were more or less taken as given. It was only after the subject became associated with phrenology, which fell into disrepute in the late 19th century, that physiognomy was written off as pseudoscience.

    Does the face give away uncomfortable truths about the person within? Roger Highfield investigates, while the idea is put to the test by Richard Wiseman and Rob JenkinsHow your looks betray your personality

    See the Video: See the average New Scientist reader and more

    January 31

    The six biggest mysteries of our solar system


    • 28 January 2009
    • For similar stories, visit the Solar System Topic Guide

    ONCE upon a time, 4.6 billion years ago, something was brewing in an unremarkable backwater of the Milky Way. The ragbag of stuff that suffuses the inconsequential, in-between bits of all galaxies - hydrogen and helium gas with just a sprinkling of solid dust - had begun to condense and form molecules. Unable to resist its own weight, part of this newly formed molecular cloud collapsed in on itself. In the ensuing heat and confusion, a star was born - our sun.

    We don't know exactly what kick-started this process. Perhaps, with pleasing symmetry, it was the shock wave from the explosive death throes of a nearby star. It was not, at any rate, a particularly unusual event. It had happened countless times since the Milky Way itself came into existence about 13 billion years ago, and in our telescopes we can see it still going on in distant parts of our galaxy today. As stars go, the sun is nothing out of the ordinary.

    And yet, as far as we know, it is unique. From a thin disc of stuff left over from its birth, eight planets formed, trapped in orbit by its gravity. One of those planets settled into a peculiarly tranquil relationship with its star and its fellow planets. Eventually, creatures emerged on it that began to wonder how their neighbourhood came to be as it is - and could formulate the following six enduring mysteries of our familiar, and yet deeply mysterious, solar system.

    How was the solar system built?

    Looking at our neighbouring planets, you could be forgiven for thinking that if they do belong to the same family, it is by adoption rather than kinship. Not so: they are blood siblings

    Why are the sun and moon the same size in the sky?

    The sun is about 400 times as wide as the moon, but it is also 400 times further away. The two therefore look the same size in the sky - is it more than a coincidence?

    Is there a Planet X?

    Lurking in the solar system's dark recesses, rumour has it, is an unsighted world - Planet X, a frozen body perhaps as large as Mars, or even Earth

    Where do comets come from?

    These cosmic apparitions have had humans pondering their nature for millennia, yet theories of where they originate still don't stand up

    Is the solar system unique?

    Since the first discovery of a planet orbiting another star in 1992, some 280 alien solar systems have been identified - but most look quite unlike ours

    How will our solar system end?

    Since the ructions that created the planets in the first 100 million years, nothing much has been happening. But something unpleasant is bound to shatter this comfortable calm

    January 05

    How your friends' friends can affect your mood

    IF YOU live in the northern hemisphere, this is probably not your favourite month. January tends to dispirit people more than any other. We all know why: foul weather, post-Christmas debt, the long wait before your next holiday, quarterly bills, dark evenings and dark mornings. At least, that is the way it seems. For while all these things might contribute to the way you feel, there is one crucial factor you probably have not accounted for: the state of mind of your friends and relatives. Recent research shows that our moods are far more strongly influenced by those around us than we tend to think. Not only that, we are also beholden to the moods of friends of friends, and of friends of friends of friends - people three degrees of separation away from us who we have never met, but whose disposition can pass through our social network like a virus.

    Indeed, it is becoming clear that a whole range of phenomena are transmitted through networks of friends in ways that are not entirely understood: happiness and depression, obesity, drinking and smoking habits, ill-health, the inclination to turn out and vote in elections, a taste for certain music or food, a preference for online privacy, even the tendency to attempt or think about suicide. They ripple through networks "like pebbles thrown into a pond", says Nicholas Christakis, a medical sociologist at Harvard Medical School in Boston, who has pioneered much of the new work....MORE...How People You Have Never Met Can Affect Your Mood



    Watch the five most popular videos posted to New Scientist in our end-of-year round-up, including rat-brained robots and the world's deepest-living fish......Video: Nov 7 Video round up

    December 13

    Virgin Galactic 'mothership' to take first flight

    The carrier plane WhiteKnightTwo will take off for the first time before Christmas (Image: Virgin Galactic)

    The carrier plane WhiteKnightTwo will take off for the first time before Christmas (Image: Virgin Galactic)

    Virgin Galactic's WhiteKnightTwo is set to take is maiden flight in the next two weeks. The flight will be the first of dozens planned for the high-altitude craft, which could become the first privately-owned vehicle to carry tourists to the edge of space.

    The high-altitude plane is designed to loft an eight-passenger craft called SpaceShipTwo to an altitude of 15 kilometres.

    There, the spaceship will detach from WhiteKnightTwo and fire a rocket to take passengers some 100 km above the Earth, where they will experience several minutes of zero gravity (see illustration). The pair are scaled-up versions of a carrier plane and spaceship that won the $10 million Ansari X prize for private spaceflight in 2004.

    Since WhiteKnightTwo's unveiling in July, the plane has passed engine and runway tests and taken small hops off the ground. The vehicle, which was developed at Scaled Composites in Mojave, California, is now ready to take off, says Virgin Galactic president Will Whitehorn.

    "The first flight test will happen very quietly, as these things tend to do, but it will be before Christmas," Whitehorn told New Scientist.

    Piloting WhiteKnightTwo may take some finesse. The plane is comparable in size to Boeing's B-29 Superfortress, a heavy, long-range bomber that flew during World War II.

    Twisting effect

    The craft has two fuselages, each with a cabin, that are connected by a 42-metre-long wing capable of holding 17 tonnes of weight.

    "The configuration makes a lot of sense" for carrying heavy payloads, says MIT aeronautical engineer John Hansman.

    But as WhiteKnightTwo begins to fly at higher altitudes, pilots might have to watch for effects such as "flutter," where aerodynamic effects exacerbate natural twisting in the wings.

    "In very severe cases, you get into an oscillation that actually builds and blows the airplane apart," Hansman told New Scientist. WhiteKnightTwo might be less susceptible to this effect, since it is made of fairly stiff carbon composite, Hansman says.

    Glide tests

    If WhiteKnightTwo's test flights go well, the firm plans to begin carrying SpaceShipTwo into the air in mid-2009. In its first solo flights, SpaceShipTwo will gently glide back to Earth without firing its rockets, slowly exploring its ability to reach suborbital space.

    To ensure safety, WhiteKnightTwo and SpaceShipTwo may require 100 to 200 test flights before the pair are ready to accept passengers, Whitehorn says.

    This testing regime should still put the firm on track to take its first passengers to the edge of space as early as 2010, Whitehorn says.

    Virgin Galactic has accumulated some $40 million in deposits from almost 300 interested space farers since the company began selling tickets in 2005.

    Climate studies

    But the firm will have competition in the suborbital space tourism market. On 2 December, XCOR Aerospace announced it would sell rides on its two-seat spacecraft Lynx for less than half of Virgin's $200,000 ticket.

    If WhiteKnightTwo's initial flights go well, the plane will carry atmospheric testing equipment on the rest of its test flights, Whitehorn says.

    The equipment, part of a collaboration with the US National Oceanic and Atmospheric Administration, will test the air at high altitudes, which are understudied because they are difficult for most aircraft to reach.

    The data collected could also help calibrate NASA's Orbiting Carbon Observatory, which will launch in 2009 to measure carbon dioxide levels in Earth's atmosphere, Whitehorn says.

    If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.

    December 11

    Talking about The Neighbours

     

    Quote

    Talking about The Neighbours

    The Neighbours
    Jatin, a handsome bachelor, moves into a rented flat in Mumbai. The very first night he knocks on the neighbouring flat and is invited in by Rahul, a bald chain smoking dude with an evil grin and a sinister look. All is well until Rahul and his feline partner Sanjana reveal that the earlier occupant of Jatin's flat - a perverted painter - met with a gruesome and unfortunate end inside the very same flat. Too scared to venture back into his flat, Jatin spends the night over at the neighbour's house and in the morning confronts the estate agent about the 'hidden' fact. The agent has a different story to tell. The final frame of the film presents a not-so-pleasant surprise to the viewer.
    Sere the vedio at :




    <a href="http://video.msn.com/video.aspx?mkt=en-in&vid=ec5a1117-d515-4ff4-9548-7b483141627e" target="_new" title="The Neighbours"><img src="http://img2.catalog.video.msn.com/Image.aspx?uuid=ec5a1117-d515-4ff4-9548-7b483141627e&w=112&h=84" border=0 alt="The Neighbours" width=112 height=84><br />The Neighbours</a>



    Talking about British designer at Chivas Fashion Tour

     

    Quote

    Talking about British designer at Chivas Fashion Tour

    British designer at Chivas Fashion Tour
    British fashion designer Caroline Charles showcased her spring/summer 2009 collection in New Delhi on November 16 at the ‘Chivas Fashion Tour '08.

    December 03

    Invention: Supersonic hurricane neutraliser

    Invention: Supersonic hurricane neutraliser

    Each year, hurricanes or typhoons may cause billions of dollars' worth of damage and a large number of fatalities. It would be hugely significant if we could find an effective way of reducing the destructive power of these storms, which convert heat energy from warm oceans into damaging kinetic energy in the atmosphere.

    Now Arkadii Leonov at the University of Akron in Ohio says that the complex air flows and other atmospheric "machinery" that produce this prodigious power are surprisingly delicate.

    Supersonic solution

    In a patent application, Leonov and colleagues say that they can put a spanner in the atmospheric works by flying supersonic jet aircraft in concentric circles around a hurricane's eye, the calm area around which the storm rotates.

    The idea is that the sonic-boom shockwave would dramatically raise air pressure in the eye, disrupting the upward flow of warm air that drives the hurricane.

    But how many planes would you need? Sonic booms spread out as they travel away from an aircraft, so even a small number of relatively small aircraft could do the job, say Leonov and colleagues.

    "Two F-4 jet fighters flying at approximately Mach 1.5 are sufficient to suppress, mitigate and/or destroy a typical sized hurricane/typhoon," they claim in their application.

    Read the full sonic boom hurricane suppression patent application.

    Since the 1970s, New Scientist has run a column uncovering the most exciting, bizarre or even terrifying new patented ideas - find the latest stories in our continually updated topic guide.

    Read past Inventions: Secret message finder, Month-long aircraft flights, Microscopic bio-robot slaves, Personal life mapper, Diamond dialysis implant, Healing accelerator, Bespoke spinal splints, Excrement antibiotic, Self-replicating materials, Treatment for fragile X, and Dust buster.

    December 02

    New theory on how Salmon find their way back to their Scottish birthplace


     
     
    Published Date: 02 December 2008
    By BEN BAILEY
    ONE of nature's greatest mysteries may have been solved after scientists revealed a new theory on how salmon find their way home.
    Every year, 20 million of them leave Scottish rivers and travel thousands of miles to Norway and Greenland to feed. Remarkably, they then return to Scotland, often to within 100 metres of where they were hatched, in a process that can take more than two years.

    How salmon complete such voyages across sea and ocean without getting lost has baffled scientists for generations. But a new theory proposes that the fish use the earth's magnetic field to locate their origins in Scottish rivers.

    Scientists believe that, in a process called "natal honing", salmon imprint the magnetic signature of their home once reaching adulthood.

    Kenneth Lohmann, professor of biology at the University of North Carolina in the United States, said: "Natal homing can be explained in terms of animals learning the unique magnetic signature of their home area early in life and then retaining that information."

    The Earth's magnetic field varies across the globe – each oceanic region has a different magnetic signature. Researchers believe that by remembering the unique "magnetic address" of their birthplace, fish may be able to distinguish that location from all others.

    Salmon and sea turtles often bypass suitable breeding grounds on their vast journeys in favour of the places they were born. Scientists believe the fish do this due to previous breeding success at a particular site.

    Prof Lohmann said: "For animals that require highly specific environmental conditions to reproduce, assessing the suitability of an unfamiliar area can be difficult and risky.

    "In effect, these animals seem to have hit on a strategy that if a natal site was good enough for them, then it will be good enough for their offspring."

    He said it might also be possible to magnetic imprinting to help re- establish salmon in rivers where the original population had been wiped out.

    Scientists agree the Earth's magnetic field changes over time and probably helps animals arrive only in the general area of their birthplace. Then, once an animal is close to their target, other senses, such as vision or smell, may be used. Salmon are known to use their sense of smell to locate spawning grounds once they are close.

    Andrew Wallace, the managing director of the Association of Salmon Fishery Boards and the Rivers and Fisheries Trusts of Scotland, said: "That salmon have some sort of magnetic map is certainly very plausible and would explain how they can travel thousands of miles and then return to the same tributary.

    "There have been theories that birds and mammals use the stars to navigate, but obviously fish can't do that.

    "Salmon have an extremely strong sense of smell and if they can recognise their magnetic signature, then it would explain how they can return to the right area. From there they can use their sense of smell to find the correct tributary."

    The salmon industry brings in around £95 million a year in Scotland.

    James Leeming, from FishPal, formerly FishScotland, said: "This is certainly an interesting idea and it sounds like a step in the right direction to discover the reason salmon can return.

    "But the important thing is that the fish do return," said Mr Leeming. "The Tweed is one of the best salmon rivers in the world and brings in large amounts of money for the local economy."


    The full article contains 582 words and appears in The Scotsman newspaper.
    Page 1 of 1

    November 20

    social origins of language

     

    Females rely on vocal communication more than males due to their need to maintain larger social networksThe discovery that female macaques are far chattier than males helps bolster the theory that human language evolved to forge social bonds. More at Monkey gossip hints at social origins of language.

    November 19

    Is Earth at the heart of a giant cosmic void?

    We assume that there is nothing particularly special about our little corner of space, but if there is it might solve one of cosmology's most pressing problems.
    Read moreat

    Is Earth at the heart of a giant cosmic void?

    November 14

    How warfare shaped human evolution…

    IT'S a question at the heart of what it is to be human: why do we go to war? The cost to human society is enormous, yet for all our intellectual development, we continue to wage war well into the 21st century.

    Now a new theory is emerging that challenges the prevailing view that warfare is a product of human culture and thus a relatively recent phenomenon. For the first time, anthropologists, archaeologists, primatologists, psychologists and political scientists are approaching a consensus. Not only is war as ancient as humankind, they say, but it has played an integral role in our evolution….How warfare shaped human evolution….. Read full article

    October 29

    GlobalCurry

    Local spices, global curry

    Germany’s Currywurst, Japan’s Kare Raisu, Curry Goat in Caribbean... The curry is no longer seen as a mix of Indian spices; it’s food for the global village, says Sabina Sehgal Saikia




        It’s being dubbed the currification of cuisine and the new sushi, as the Indian curry curries favour the world over and is freely appropriated and integrated by disparate culinary cultures across the globe. The New York Times has voted it one of the planet’s most internationalized foods, right up there with the pizza.

        Unsurprising then that Germany is embroiled in a bitter argument about a curry snack, a seemingly foreign food that has been a firm favourite with it for 60 years. Germany is getting steamed up about the origins of the Currywurst. The curry and tomato sauce-flavoured sausage is its most celebrated snack. It is the theme of a new film The Invention of the Currywurst, which controversially traces its roots not to Berlin but postwar Hamburg. The fact that this is apparently a matter of serious search and scrutiny says much about the Currywurst’s status in Germany. Nearly a billion are believed to be consumed in Germany every year. A new study suggests that 80% of Germans regard the Currywurst as central to their diet.

        Closer home, in Japan, Indian curry seems to be the flavour of the current season. The Japanese fascination with Indian curry and naan and shifting tastes away from Chinese and Thai cuisine, has caused hundreds of Indian restaurants to mushroom across the archipelago. Japan’s idea of Indian curry and naan is distinct from the more tepid Japanese “curry” – usually eaten as Kare Raisu — which people consume on average 62 times a year, according to a survey. The British introduced curry in Japan in the Meiji era after it ended its policy of national self-isolation, Sakoku. Today, curry has captured the country’s culinary imagination in a way nothing else has. That is why Japan has curry cutlets, Katsu-Kare; curry noodles, Kare Udon and curry bread, Kare-Pan.

        Some form of curry can be found in kitchens around the world — be it the curry goat in the Caribbean; the cape curry in South Africa; the curry shrimp and curry chicken in Trinidad and Tobago; the Kare-Kare in the Phillipines; Fiji’s Kare; Samoa and Tonga’s Polynesian curry and the more familiar Malaysian, Thai, Indonesian curries. All of these are influenced by Indian spices.

        The Indian curry has several enthusiastic and prominent ambassadors, from former US President Clinton and Antonio Banderas to the Sultan of Brunei, Tom Cruise, Sharon Stone, Mel Gibson, Nicole Kidman. Singer Bryan Adams has a personal Indian chef; Johnny Depp is a selfconfessed chicken biryani freak; Uma Thurman, Minnie Driver, Boris Becker, Mahesh Bhupati and the King and Queen of Jordan are partial to a curry.

        Then, there are the theories about curry addiction. Several studies claim that “the reaction of pain receptors to the hotter ingredients in curries leads to the body's release of endorphins and combined with the complex sensory reaction to the variety of spices and flavours, a natural high is achieved that causes subsequent cravings, often followed by a desire to move on to hotter curries.”

        But the curry’s conquest of the world is hardly new. But is it a new metaphor of reverse colonialism? However dubious its genealogy, the “curry” has been both political subject — and symbol — in many countries for several decades. In 2001, the then British foreign secretary Robin Cook hailed chicken tikka masala as his country's new national dish. It has since emerged as an emblem of the changing English palate. With Brits increasingly keen to shake off their clichéd image as unimaginative cooks and consumers of dull, tasteless, boiled and boring food! A few years ago, a London newspaper ran a magazine cover showing a local lout, complete with leather jacket and Union Jack T-shirt, partaking of an Indian meal, surrounded by slogans “Keep Curry British!” and “Bhuna! Nan! Pilau! Curry is your birthright!”

        It was hardly a slogan India would use, being confounded by our socalled gift to the world at large when no such thing exists here! For starters, there is the singular absence in the repertoire of Indian cuisine of the word “curry,” that suspiciously Epicurean epitome of Indian food!

        Lizzie Collingham, author of Curry: A Tale of Cooks and Conquerors,

    offers a provocative inquiry into curry and its evolution. Her post-modernist theory — quite like that propounded by Amartya Sen — scoffs at the idea that India, or any other nation, ever had a cuisine that was not constantly in the process of assimilation. Seen through the culinary prism, Amartya Sen’s thesis on globalization debunks the phoney rightwing fears of being swamped by a foreign culture. Sen maintains that India too has adapted its tastes to myriad global influences over the centuries. The Bengali mishti is mostly chanar-based, a technique that came into India only after the European missionaries reached our shores centuries ago. Clearly, the converse is true.

        The mirch or chilli was unknown to India 400 years ago; the tomato didn’t exist in Indian food till as recently as 200 years ago! Today, India is the world’s leading producer of chilli and supplies a large part of the planet’s insatiable appetite for the sizzling stuff. But, had the Portuguese not touched down in Goa in the late 15th century, we might have had an altogether different cuisine to showcase to the world. Strange are the accidents of history. But how did the chilli come to be so enthusiastically accepted in India, indeed Asia, even though Europe remained indifferent to it for centuries? At the turn of the century, successive British and Indian writers theorized that an already spicy cuisine — the south Indian Kaari (later bastardised as the fictitious curry) — zealously adopted the chilli as an integral part, adding strength to its already dynamic mix of masalas.

        However it happened, it is time the generically Indian curry is viewed as food of, by and for the global village. Today, gastronomy can have no geographical boundaries, cuisine no country and taste no territory. In a gloriously globalizing world, “the other” converges with “the mother” and 21st-century cuisine is a confluence of cultures. Curry today is no more than a symbol of our times.

    October 19

    Colliding rocks and curious comets: The week in space Movie Camera

    In the past week, a small space rock hit Earth, and astronomers released images of a mysterious comet and seasons on Uranus.

    See these images and more in our weekly gallery.

    Comets and Asteroids – Learn more about the threat to human civilisation in our special report.

    September 11

    Moon rocket passes crucial design test

    WASHINGTON (AP) -- NASA's new moon rocket passed a crucial design milestone late Wednesday.

    NASA provided this image of the Ares 1 rocket, which it hopes will return astronauts to the moon by 2020.

    NASA provided this image of the Ares 1 rocket, which it hopes will return astronauts to the moon by 2020.

     Senior NASA management unanimously approved the preliminary design review of the planned Ares I rocket that would launch astronauts into space by 2015 and back to the moon by 2020. Read More at...Moon rocket passes crucial design test
    July 12

    Giant water plume spews from Saturn’s moon

    • 16:07 30 August 2005
    • NewScientist.com news service
    • Stephen Battersby

    Four fissures in the south pole of Saturn's moon Enceladus are spewing out a plume hundreds of kilometres high, the Cassini probe has revealed, and the ejecta is leaving a vapour trail that rings Saturn.

    Scientists are shocked by this volcanic activity on what should be a small, quiet moon. "It is a stunning surprise," said Dennis Matson, from NASA's Jet Propulsion Laboratory in Pasadena, California, US. But researchers are beginning to develop theories about what is going on.

    Matson and other members of the Cassini spacecraft team revealed the latest data on Enceladus in London, UK, on Tuesday. Cassini snapped an image of the fissures, nicknamed "tiger stripes", when it flew past Enceladus on 14 July 2005, skimming within just 173 kilometres of the moon's surface.

    Meanwhile, Cassini’s Composite Infrared Spectrometer picked up unexpectedly strong infrared radiation (heat) from the south pole. "It’s like flying by Earth and discovering that Antarctica is warmer than the equator," says John Spencer of the Southwest Research Institute in Boulder, Colorado, US. Zooming in, CIRS found that the fissures are at least 90° kelvin (-183°C), 15° warmer than most of the moon's surface.

    Ice bombs

    The tiger stripes are strange in other ways too, showing the spectral signatures of organic molecules and a form of ice that can only exist at relatively high temperatures.

    Other instruments on Cassini sampled a vast plume of water vapour towering above the south pole, almost certainly coming from the hot fissures. Scientists have speculated before that Enceladus might supply material for one of Saturn's rings, the E-ring, and the new observations seem to confirm it. Water is pouring out at a rate of half a tonne per second - enough to keep the E-ring topped up.

    Cassini has also seen 20-metre boulders near the moon's south pole. Could these have been blown out of the fissures, like giant, icy lava bombs? "They are awfully large" to have been ejected, says Torrence Johnson of the Cassini imaging team, "but Enceladus' gravity is weak, so it doesn't take much to lift stuff off the surface".

    Tidal friction

    Internal heat must be driving all this activity, but the source of the heat remains a big puzzle. Natural radioactive decay in the moon's rocky core might warm the interior just enough to produce a sludgy plume of water and ammonia. This could heat the surface ice just enough to allow water to evaporate slowly.

    But Cassini also detected dust and whole ice grains in the plume, implying that the material is squirted out of Enceladus with some force. That would need a lot of heat – far too much to come from the core.

    An alternative is the tidal pull of Saturn's gravity, which makes the moon flex and produce heat by internal friction. But initial calculations put that at only 1% of the heat from the core.

    Johnson speculates that thousands of years ago the orbit of Enceladus may have been different, producing much more severe tidal heating. Today, researchers just see leftover heat escaping.

    Or perhaps all the tidal stresses on Enceladus are focused on those four fissures, rubbing the surfaces together to melt the ice. "Somehow Enceladus is doing it, so we're going to have to figure out how," says Johnson.

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    June 24

    How Smart Is the Octopus?

    You'd have to go back about 700 million years to find the moment in the history of life when humans and octopuses diverged. Our most recent common ancestor, scientists suspect, was a little wormlike creature with eyespots and little more. Since then, our lineage evolved bones; theirs evolved boneless bodies they control with water pressure. We've accumulated so many and such incredible differences over that time that 20th-century scientists were excited to discover a few deep similarities. In the 1950s, for example, biologists demonstrated for the first time that octopuses have massive brains.
    Watch vedios:uncanny impression of a flounder   2,unscrews it

    Bright enough to do the moving-rock trick....More...