শুক্রবার, ২৯ মার্চ, ২০১৩

Supreme Court indicates it may strike down marriage law

By Lawrence Hurley and David Ingram

WASHINGTON (Reuters) - The Supreme Court seemed to be leaning on Wednesday toward striking down a law that denies federal benefits to legally married same-sex couples in a move that would reflect a shift in Americans' attitudes about gay marriage.

In a second day of oral arguments on same-sex marriage, a majority of the court raised serious concerns with the Defense of Marriage Act, or DOMA, enacted in 1996 under President Bill Clinton.

Arguments over the last two days on the DOMA case and a separate one challenging California's ban on gay marriage marked the high court's first foray into a delicate and divisive political, religious and social issue in the United States as polls indicate growing public support for same-sex marriage.

In theory, the cases have the potential for the court to take a significant step toward endorsing gay marriage as it gains support in some parts of the country. Based on the arguments, however, a partial victory for gay rights activists seems more likely than the sweeping declaration of same-sex marriage rights they had hoped for.

As demonstrators rallied outside the Supreme Court building for a second day, Justice Anthony Kennedy, a potential swing vote, showed a willingness to invalidate DOMA, which denies married same-sex couples access to federal benefits by defining marriage as between a man and a woman.

He warned of a "real risk" that the law infringes on the traditional role of the states in defining marriage.

A conservative, Kennedy is viewed as a key vote on this issue in part because he has twice authored decisions in the past that were viewed as favorable to gay rights.

In contrast to the ambivalent approach they displayed on Tuesday in arguments about California's Proposition 8 gay marriage ban, the nine justices seemed willing to address the substantive issue in the DOMA case, while also eyeing procedural questions.

The court is not expected to rule on the two cases until the end of June. If the justices were to strike down DOMA, legally married gay couples would be winners because they would have improved access to federal benefits, such as tax deductions.

Justices gave a strong indication they might resolve the Proposition 8 case on procedural grounds, but even that would be viewed as a win for gay rights activists as same-sex marriages in California would likely resume.

What appears highly unlikely is a sweeping declaration of a right for gay people to marry, a possible option only in the California case.

A group from Alabama prays in front of the Supreme Court in Washington, Wednesday, March 27, 2013, before the court's hearing on the Defense of Marriage Act (DOMA). In the second of back-to-back gay ... more? A group from Alabama prays in front of the Supreme Court in Washington, Wednesday, March 27, 2013, before the court's hearing on the Defense of Marriage Act (DOMA). In the second of back-to-back gay marriage case, the Supreme Court is turning to a constitutional challenge to the law that prevents legally married gay Americans from collecting federal benefits generally available to straight married couples. (AP Photo/Carolyn Kaster) less? Overall, a majority of the justices made it clear that, while they might not impede the recent movement among some states toward gay marriage, they were not willing to pave the way either.

Nine states now recognize gay marriage, while 30 states have constitutional amendments banning it and others are in-between.

On several occasions over the two days, the justices' own remarks illustrated how quickly attitudes have changed in favor of gay marriage.

During Tuesday's arguments, Justice Antonin Scalia, a conservative, questioned whether there was sufficient data to show that children are not adversely affected if raised by same-sex couples. Likewise, Justice Samuel Alito noted the concept of gay marriage is "newer than cellphones and the Internet."

Offering a liberal perspective, Justice Elena Kagan prompted murmurs of surprise from onlookers on Wednesday when she quoted from a U.S. House of Representatives report written less than two decades ago, at the time DOMA was enacted, that referenced "moral disapproval" of gay marriage.

'SKIM MILK MARRIAGE'

As attention turned to DOMA on Wednesday, Kennedy made it clear where he stood, referring to DOMA as "inconsistent" because it purports to give authority to the states to define marriage while limiting recognition of those determinations.

His states' rights concerns were echoed by two of the liberal members of the bench, Kagan and Justice Sonia Sotomayor. "What gives the federal government the right to be concerned at all about what the definition of marriage is?" Sotomayor said.

Justice Ruth Bader Ginsburg and Justice Stephen Breyer also raised concerns about the law.

Ginsburg stressed how important federal recognition is to any person who is legally married.

"It affects every area of life," she said.

Comparing marriage status with types of milk, Ginsburg said that a gay marriage endorsed by a state, but not recognized by the federal government, creates two types of marriage, "full marriage, and then this sort of skim milk marriage."

If the court rules on the states' rights issue, the justices could strike down the law without deciding the bigger question of whether DOMA violates the U.S. Constitution's guarantee of equal protection under the law.

On that issue, Kagan spoke of a "red flag" that indicates Congress passed DOMA with the intent of targeting a group that is "not everyone's favorite group in the world."

Various groups are calling for DOMA to be struck down, such as the Business Coalition for DOMA Repeal, whose members include Marriott International Inc, Aetna Inc, eBay Inc, and Thomson Reuters Corp, the corporate parent of the Reuters news agency.

Separately, several conservative justices criticized Obama and his Justice Department for not defending the marriage law in court.

Chief Justice John Roberts questioned whether Obama had "the courage of his convictions" for continuing to enforce DOMA while calling it invalid.

(Reporting by Lawrence Hurley, Joan Biskupic, David Ingram and Joseph Ax; Editing by Kevin Drawbaugh and Eric Beech)

Source: http://news.yahoo.com/supreme-court-next-gay-marriage-case-eyes-federal-050121766.html

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Donovan: Goal is to get back on US soccer team

Associated Press Sports

updated 12:34 p.m. ET March 28, 2013

WASHINGTON (AP) - Landon Donovan has returned to training with the Los Angeles Galaxy.

Now his goal is to work his way back into the national team picture.

Donovan, whose asked club coach Bruce Arena for an extended offseason after the Galaxy's MLS Cup triumph early last December, says it will take some time to regain his form.

After a training session with the Galaxy Thursday at Georgetown, Donovan says he realizes he has "a long way to go, both on the field and off the field, to work back into the national team."

Donovan, who joined the Galaxy ahead of their visit to the White House Tuesday, says he will not play in Los Angeles' match Saturday at Toronto, but could return as a substitute in upcoming league matches.

? 2012 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.


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PST: We took the current standings from qualifying tournaments around the world, assumed the teams? points-per-game rates played out, and then ?qualified? the appropriate teams for Brazil.

Source: http://nbcsports.msnbc.com/id/51362405/ns/sports-soccer/

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CA-BUSINESS Summary

TSX hits one-month low as euro zone concerns resurface

TORONTO (Reuters) - Canada's main stock index slumped to a one-month low on Wednesday, led by declines in financial and energy shares, as weak economic data from the euro zone and worries about the Cyprus bailout weighed on investor sentiment. The losses were tempered by gains made by gold-mining stocks, benefiting from a jump in the price of bullion, whose appeal as a safe haven tends to increase on negative economic news.

Lehman plans to distribute $14.2 billion to creditors

(Reuters) - Lehman Brothers Holdings Inc said on Wednesday it plans to distribute about $14.2 billion to creditors early next month, as the company winds down following its emergence last year from bankruptcy protection. The distribution, to be made April 4, will be Lehman's third since it emerged from Chapter 11 protection on March 6, 2012.

Agrium battle heats up, advisory firms differ

TORONTO (Reuters) - The battle for Agrium Inc's future is heating up ahead of an April 9 vote after the two most influential proxy advisory firms disagreed on the candidates shareholders should back in the election of Agrium's board of directors. Institutional Shareholder Services recommends clients back two of the five nominees proposed by dissident investor Jana Partners, putting it at odds with a Glass Lewis endorsement of all 12 of Agrium's board nominees.

Cyprus to limit cash, credit-card use abroad

NICOSIA (Reuters) - Cyprus is set to restrict the flow of cash from the island and may curb the use of Cypriot credit cards abroad as it tries to avert a run on its banks after agreeing a tough rescue package with international lenders. A Greek newspaper published details of what officials told Reuters was as yet only a draft government decree to restrict outward payments to documented imports and limit how much people could take abroad in banknotes or spend on credit cards.

Canada inflation jumps, rate change still seen far off

OTTAWA (Reuters) - Canada's annual inflation rate jumped more than expected in February, but analysts said the spike was unlikely to pressure the Bank of Canada to raise interest rates any time soon. The year-on-year rate rose to 1.2 percent from a three-year-low of 0.5 percent in January on higher gas and auto prices, Statistics Canada said on Wednesday.

Volvo to launch first new car with Geely in 2014: CEO

NEW YORK (Reuters) - Swedish automaker Volvo Car will introduce its first all-new vehicle as a unit of China's Zhejiang Geely Holding Group Co Ltd in late 2014, Volvo Chief Executive Hakan Samuelsson said on Wednesday. The new model will be a successor to the Volvo XC90 crossover vehicle, Samuelsson told Reuters on the sidelines of the New York auto show.

BRICS "Big Five" find it hard to run as a herd

DURBAN, South Africa (Reuters) - At a summit in South Africa on Wednesday, Vladimir Putin likened the BRICS nations - Brazil, Russia, India, China and South Africa - to Africa's "Big Five" game beasts of trophy hunting lore - the lion, elephant, buffalo, leopard and rhinoceros. The Russian president's comparison captures the dilemma of these muscular emerging global powers, which together present a formidable potential economic and political counterweight to the developed West, but individually could hardly be more different.

Alberta wants securities regulation to stay with provinces

TORONTO (Reuters) - Alberta wants individual provinces to retain their authority over Canadian securities regulation, a position that makes federal attempts to create a single, national body more difficult, although Alberta is willing to make some adjustments in the current system. The province's finance minister, Doug Horner, said Alberta was happy to discuss greater cooperation with Ottawa, especially in the realm of systemic risk. But the energy-rich province, which is seen as a key player in creating the critical mass of support that would pave the way for a national regulator, is not about to dismantle its own financial watchdog.

Analysis: "Cyprus euros" could take on own value with capital controls

FRANKFURT (Reuters) - Cyprus's plan to impose capital controls threatens to test the ties that bind Europe's monetary union and could see euros on the Mediterranean island valued differently to those in the rest of the bloc. The capital controls, being imposed to avert a run on banks after an EU bailout, will limit foreign transactions and capital outflows but not movements of money within the country itself, the head of the Cyprus chamber of commerce said on Wednesday after meeting government officials.

Credit Suisse buys Morgan Stanley's European wealth arm

ZURICH (Reuters) - Credit Suisse is buying Morgan Stanley's wealth management arm in Europe, the Middle East and Africa, acquiring $13 billion in assets in a move to offset exposure to more volatile investment banking. The assets are tiny by the standards of Credit Suisse's private banking operation, the world's fifth-largest with nearly 800 billion Swiss francs ($843 billion) under management.

Source: http://news.yahoo.com/ca-business-summary-000757996--finance.html

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বৃহস্পতিবার, ২৮ মার্চ, ২০১৩

Dot Earth Blog: Global Study of Monsoons Finds Ocean Variations Have Driven Recent Shifts

[March 24, 11:10 p.m.: Apologies for the blog silence and slow comment moderation. I'm camped on a beach with Pace University students making a film about efforts to balance fishing with marine conservation. ]

The seasonal rains called monsoons matter enormously to human affairs, from the Indian subcontinent to the American Southwest. Getting a better understanding of the forces that will shape these features of the climate system in coming decades is a big research priority, but also a very tough challenge given the many factors in play.

In a study published in this week?s Proceedings of the National Academy of Sciences, researchers analyzing monsoon patterns around the Northern Hemisphere since the 1970s conclude that there has been a substantial intensification of summer monsoon rainfall and circulation. The researchers say natural variations in the Pacific and Atlantic Oceans appear to be the main force behind the shift. Climate models have tended to project a different result.

I asked a variety of scientists working on these questions to evaluate the paper and related materials in an e-mail discussion including one of the authors, Peter Webster, a Georgia Institute of Technology climate scientist.

I distributed the abstract and a news release from the University of Hawaii, where the lead author, Bin Wang, is chairman of the department of meteorology.

Here?s an excerpt from the release:

Current theory predicts that the Northern Hemisphere summer monsoon circulation should weaken under anthropogenic global warming.

Wang and his colleagues, however, found that over the past 30 years, the summer monsoon circulation, as well as the Hadley and Walker circulations, have all substantially intensified. [Explore this Real Climate post to see how much this finding conflicts with what had been conventional wisdom.]

This intensification has resulted in significantly greater global summer monsoon rainfall in the Northern Hemisphere than predicted from greenhouse-gas-induced warming alone: namely a 9.5% increase, compared to the anthropogenic predicted contribution of 2.6% per degree of global warming.

Most of the recent intensification is attributable to a cooling of the eastern Pacific that began in 1998. This cooling is the result of natural long-term swings in ocean surface temperatures, particularly swings in the Interdecadal Pacific Oscillation or mega-El Ni?o-Southern Oscillation, which has lately been in a mega-La Ni?a or cool phase. Another natural climate swing, called the Atlantic Multidecadal Oscillation, also contributes to the intensification of monsoon rainfall.

Here?s a link to the paper and the abstract, followed by the discussion so far:

?Northern Hemisphere summer monsoon intensi?ed by mega-El Ni?o/southern oscillation and Atlantic multidecadal oscillation?

Bin Wang, Jian Liu, Hyung-Jin Kim, Peter J. Webster, So-Young Yim, and Baoqiang Xiang

Prediction of monsoon changes in the coming decades is important for infrastructure planning and sustainable economic development. The decadal prediction involves both natural decadal variability and anthropogenic forcing. Hitherto, the causes of the decadal variability of Northern Hemisphere summer monsoon (NHSM) are largely unknown because the monsoons over Asia, West Africa, and North America have been studied primarily on a regional basis, which is unable to identify coherent decadal changes and the overriding controls on planetary scales. Here, we show that, during the recent global warming of about 0.4?C since the late 1970s, a coherent decadal change of precipitation and circulation emerges in the entirety of the NHSM system. Surprisingly, the NHSM as well as the Hadley and Walker circulations have all shown substantial intensi?cation, with a striking increase of NHSM rainfall by 9.5% per degree of global warming. This is unexpected from recent theoretical prediction and model projections of the 21st century. The intensi?cation is primarily attributed to a mega-El Ni?o/Southern Oscillation (a leading mode of interannual-to-interdecadal variation of global sea surface temperature) and the Atlantic Multidecadal Oscillation, and further in?uenced by hemispherical asymmetric global warming.

These factors driving the present changes of the NHSM system are instrumental for understanding and predicting future decadal changes and determining the proportions of climate change that are attributable to anthropogenic effects and long-term internal variability in the complex climate system.

In my query to climate scientists, I noted that the work appeared to raise significant questions about the limits of climate models and pose a challenge for anyone arguing that recent shifts in monsoons are due to human-driven climate change. Here?s the discussion (I cleaned up some e-mail shorthand but the rest is as written; it is technical in spots):

Kevin Trenberth, Distinguished Senior Scientist, National Center for Atmospheric Research:

I do not find this result at all surprising, but some of the material is a bit misleading. I have not read the paper, however there continues to be confusion about changes in monsoons (in this case), or ENSO [the El Ni?o-Southern Oscillation], etc. and the effects of those changes in terms of precipitation and other effects. So the terminology makes a difference.

For instance please see Trenberth, K. E., 2011: ?Changes in precipitation with climate change.? Climate Research, 47, 123-138, doi:10.3354/cr00953

So while the monsoon winds might weaken the precipitation nonetheless increases (more bang for the buck) as a weaker circulation carries more water vapor (and latent energy). ENSO might weaken by some definitions but droughts and floods increase in magnitude.

So while the monsoon winds might weaken the precipitation nonetheless increases (more bang for the buck) as a weaker circulation carries more water vapor (and latent energy). ENSO might weaken by some definitions but droughts and floods increase in magnitude. The way one frames the questions about the role of climate change matters. Decadal variability has been acknowledged in many other recent publications such as?

Dai, A., 2013: ?The influence of the Inter-decadal Pacific Oscillation on U.S. precipitation during 1923-2010.? Climate Dynamics, doi:10.1007/s00382-012-1446-5, in press.

?and extensively in climate models in the work of Clara Deser, see the paper in Nature Climate Change recently and articles such as this?

Deser, C., A. S. Phillips, V. Bourdette, and H. Teng, 2012: ?Uncertainty in climate change projections: The role of internal variability.? Climate Dyn., 38, 527-546, DOI 10.1007/s00382-010-0977-x.

Indeed regionally, interannual and decadal variability is still dominant in the climate record and will be for a long time. The whole idea of regional climate prediction that has come to the fore mainly because of need/demand is not based on sound science owing to fundamental predictability issues. How one does attribution is indeed an issue.

Andrew Turner, a climate scientist at the University of Reading in England (interviewed by Vikas Bajaj for the Green blog last year):

The paper?offers a useful framework for which decadal variations in the global (or northern hemisphere) may be explained via large scale modes of oceanic variability. This potentially could lead to added predictability for a certain proportion of monsoon rainfall variability.

However, this decadal predictability, ?necessary for infrastructure planning, energy policy, business development, and issues related to sustainability? (to quote the PNAS paper) is only useful to end-users (people on the ground) if rainfall in local regions can be better predicted. Basing local planning decisions on hemisphere-scale signals may be misguided, and so probably if any decadal predictions can be made for these hemisphere-scale portions of the monsoon then they need to be supplemented by information from other sources of predictability in order to target the local level. Whether this can be done is another matter.

A certain amount of care is needed in interpreting the results of this paper at a local or even regional monsoon level. For example the increasing trend in the coherent NHSM decadal precipitation shown in the paper (Figure S3B: the spatial pattern and associated principal component time series of the EOF) in fact suggest a weakening over recent decades in much of India and East Asia. This is in stark contrast to the headline result.

Correspondingly, in those regions I mention (which, by population, represent the most important regions of the global monsoon) much of the increasing precipitation signal is coming from oceanic regions: the eastern Arabian Sea, the Bay of Bengal, the South and East China Seas and Bay of Bengal. The declining signal over India shown by the GPCP decadal mode is broadly consistent with gauge measurements since the 1950s ? that several research groups including my own are trying to understand, perhaps relating to emissions of anthropogenic aerosol ? although there are discrepancies between these gauge-based data sets themselves (see our recent review in Nature Climate Change, for example).

We already know that (regional) monsoon variability on the scales for sub-seasonal to interannual are higher than the projected model trends of future mean monsoon rainfall (I?ve just seen that Kevin has mentioned this also). In some models, the decadal variability for monsoons such as the South Asian monsoon also outweighs the magnitude of the future trends, and in others it does not (the review above is one example showing this). We need to better characterise the decadal variability in the regional monsoons and understand why models show such different behavior.

Reacting to Trenberth, Peter J. Webster, an author of the new paper and climate scientist at Georgia Tech, wrote this, directed to Kevin Trenberth:

Kevin,

Thanks for your insight. But perhaps you might read the paper first before directing (misdirecting) the attention away from Andy?s questions.
To me, the issue is that there is a trend when one considers the global monsoon (and yes, Kevin has written about the global monsoon, too). I think that one of the problems that we have had in monsoon stuff is to consider the monsoons bit by bit. We received reviewer criticism from (I guess) Indian scientists who have spoken of a diminishing monsoon. Yet, India is a small place and their statistics are based on the average annual rainfall over India that doesn?t include rainfall from Pakistan, Nepal, Bangladesh or any countries in East Asia. I think that one has to be careful in drawing global conclusions from local or even regional trends or events (read Sandy!) What this paper does is show that if one carefully considers the larger scale aspects of the monsoon including the oceanic monsoon (see some of the papers by Winston Chao a decade or so ago: thoroughly recommend) then one can start to see trends on a global basis. I think that some times we get caught up in minitua or filligree of climate. So if we make a contribution in this paper it is that viewed holistically that the monsoons are changing and there is a supporting physical basis for this.

Webster added this note, directed to Andrew Turner (and me):

Dear Andys (two),

Andy T?s point is well taken but please read the previous note. We start by making the point that there is a trend in the global monsoon as we describe it. Yes, there are changes in the Indian monsoon but note that this a regional perspective. Let us say that we start at looking at the rainfall over India and then extrapolate that to the globe. One gets an opposite global trend that is completely misleading. And one is left trying to understand regional changes without a global context. But if one finds a global monsoon trend and if it turns out to be robust, then one has a handle to help understand local or regional changes. To me, the most important thing is finding large scale physics that help make sense regional changes.

Andy T is correct that the largest changes in the South Asian monsoon rainfall is occurring in the Bay of Bengal which, by the way, is the regional maximum in precipitation and has been for a long time. And, I believe that the Indian Ocean is the ocean of fastest sea-surface temperature increase. So I am hopeful that we can increase interdecadal prediction by understanding the links between global physics and regional response.

Years ago, Tim Palmer and I had a discussion about the impact of global forcing (e.g., CO2) on circulation patterns. It seemed to us that the impact would be on the ?normal modes? of natural variability. That is, one would expect impacts to be on the gross features of the climate system (PDO, AMO, ENSO?.). Whereas the magnitude and frequency of these phenomena may be forced to change, it is less likely that we would get new phenomena. We may even have written this up 20 years ago in some obscure journal. But I think that this point is pertinent to our paper.

I?ll add more as responses come in. If you have questions, post them and I?ll alert the group I?ve queried.

It?s important not to rely too much on a single study, of course. Here?s recent research, also from the University of Hawaii, that has a closer focus on southern Asia and draws different conclusions: ?Global Warming Shifts The Monsoon Circulation, Drying South Asia?. And looking further in the future, other researchers see greenhouse-driven warming becoming a big and harmful influence in that populous region: ?A statistically predictive model for future monsoon failure in India.?

Source: http://dotearth.blogs.nytimes.com/2013/03/22/global-study-of-monsoons-finds-ocean-variations-have-driven-recent-shifts/?partner=rss&emc=rss

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US general warns of al-Qaida threat in Tunisia

TUNIS, Tunisia (AP) ? The chief of the U.S. Africa Command has warned about al-Qaida attempts to gain a foothold in Tunisia.

Gen. Carter Ham told Tunisian radio late Tuesday that "it is very clear to me that al-Qaida intends to establish a presence in Tunisia."

The North African nation of 10 million was the birthplace of the 2011 pro-democracy Arab Spring uprisings and has since seen a rise in radical Islamic movements.

Ham said that following talks with the government, which is led by moderate Islamists, he is convinced it is "committed to doing everything it can to prevent al-Qaida from establishing a presence."

Ham, who took over Africa Command in March 2011 and is stepping down, was on a regional tour that included visits to southern Algeria and Libya.

Source: http://news.yahoo.com/us-general-warns-al-qaida-threat-tunisia-103036171.html

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Saturn is like an antiques shop, Cassini suggests; Moons and rings date back to solar system's birth

Mar. 27, 2013 ? A new analysis of data from NASA's Cassini spacecraft suggests that Saturn's moons and rings are gently worn vintage goods from around the time of our solar system's birth.

Though they are tinted on the surface from recent "pollution," these bodies date back more than 4 billion years. They are from around the time that the planetary bodies in our neighborhood began to form out of the protoplanetary nebula, the cloud of material still orbiting the sun after its ignition as a star. The paper, led by Gianrico Filacchione, a Cassini participating scientist at Italy's National Institute for Astrophysics, Rome, has just been published online by The Astrophysical Journal.

"Studying the Saturnian system helps us understand the chemical and physical evolution of our entire solar system," said Filacchione. "We know now that understanding this evolution requires not just studying a single moon or ring, but piecing together the relationships intertwining these bodies."

Data from Cassini's visual and infrared mapping spectrometer (VIMS) have revealed how water ice and also colors -- which are the signs of non-water and organic materials --are distributed throughout the Saturnian system. The spectrometer's data in the visible part of the light spectrum show that coloring on the rings and moons generally is only skin-deep.

Using its infrared range, VIMS also detected abundant water ice -- too much to have been deposited by comets or other recent means. So the authors deduce that the water ices must have formed around the time of the birth of the solar system, because Saturn orbits the sun beyond the so-called "snow line." Out beyond the snow line, in the outer solar system where Saturn resides, the environment is conducive to preserving water ice, like a deep freezer. Inside the solar system's "snow line," the environment is much closer to the sun's warm glow, and ices and other volatiles dissipate more easily.

The colored patina on the ring particles and moons roughly corresponds to their location in the Saturn system. For Saturn's inner ring particles and moons, water-ice spray from the geyser moon Enceladus has a whitewashing effect.

Farther out, the scientists found that the surfaces of Saturn's moons generally were redder the farther they orbited from Saturn. Phoebe, one of Saturn's outer moons and an object thought to originate in the far-off Kuiper Belt, seems to be shedding reddish dust that eventually rouges the surface of nearby moons, such as Hyperion and Iapetus.

A rain of meteoroids from outside the system appears to have turned some parts of the main ring system -- notably the part of the main rings known as the B ring -- a subtle reddish hue. Scientists think the reddish color could be oxidized iron -- rust -- or polycyclic aromatic hydrocarbons, which could be progenitors of more complex organic molecules.

One of the big surprises from this research was the similar reddish coloring of the potato-shaped moon Prometheus and nearby ring particles. Other moons in the area were more whitish.

"The similar reddish tint suggests that Prometheus is constructed from material in Saturn's rings," said co-author Bonnie Buratti, a VIMS team member based at NASA's Jet Propulsion Laboratory, Pasadena, Calif. "Scientists had been wondering whether ring particles could have stuck together to form moons -- since the dominant theory was that the rings basically came from satellites being broken up. The coloring gives us some solid proof that it can work the other way around, too."

"Observing the rings and moons with Cassini gives us an amazing bird's-eye view of the intricate processes at work in the Saturn system, and perhaps in the evolution of planetary systems as well," said Linda Spilker, Cassini project scientist, based at JPL. "What an object looks like and how it evolves depends a lot on location, location, location."

The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology, Pasadena, manages the mission for NASA's Science Mission Directorate, Washington, D.C. The visual and infrared mapping spectrometer team is based at the University of Arizona, Tucson.

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Story Source:

The above story is reprinted from materials provided by NASA/Jet Propulsion Laboratory.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.


Journal Reference:

  1. G. Filacchione, F. Capaccioni, R. N. Clark, P. D. Nicholson, D. P. Cruikshank, J. N. Cuzzi, J. I. Lunine, R. H. Brown, P. Cerroni, F. Tosi, M. Ciarniello, B. J. Buratti, M. M. Hedman, E. Flamini. The radial distribution of water ice and chromophores across Saturn's system. Astrophysical Journal, 2013; (accepted) [link]

Note: If no author is given, the source is cited instead.

Disclaimer: Views expressed in this article do not necessarily reflect those of ScienceDaily or its staff.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/space_time/nasa/~3/r2bvS0rQl3A/130327170155.htm

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Internet Slows Worldwide Due to Largest Cyber-Attack in History ...

An online battle between a spam-fighting group and a Web hosting company has slowed the Internet around the globe today, security experts told the BBC, describing the incident as the most significant cyber-attack of its kind to ever occur.

The fight between the two sides ? anti-spam fighting group Spamhaus and the Dutch Web host CyberBunker ? has set off retaliatory attacks affecting widely-used online services such as Netflix. According to the BBC article, security experts are concerned banking systems and e-mail services could soon be affected.

The attacks are currently under investigation by five cyber law enforcement groups.

Spamhaus is an international non-profit organization that tracks spam operations and sources, often working with law enforcement to pursue spam gangs worldwide and to lobby governments for effective anti-spam legislation.

To filter spam, the agency maintains a number of blocklists that are ?responsible for keeping back the vast majority of spam sent out on the Internet,? according to the Spamhaus website.

Spanhaus? recent blocking of Cyberbunker?s servers instigated the unofficial war.

?Spamhaus apparently does not approve that ?CyberBunker offers anonymous hosting of anything except child porn and anything related to terrorism.? Of course this almost ?anything goes? is classified by Spamhaus as: spam, phishing and malware,? reads an article on the Cyberbunker website.

?According to Spamhaus, CyberBunker is designated as a ?rogue? host and has long been a haven for cybercrime and spam. Of course Spamhaus has not been able to prove any of these allegations.?

Spamhaus CEO Steve Linford told the BBC his organization has been under attack for more than a week due to a Distributed Denial of Service (DDoS) attack. Such attacks inundate the intended victim with vast amounts of traffic to render it inaccessible.

?But we?re up ? they haven?t been able to knock us down. Our engineers are doing an immense job in keeping it up ? this sort of attack would take down pretty much anything else,? he was quoted by the BBC.

Spamhaus posted on its blog March 20 that is was first hit by a large-scale DDoS attack March 16-17, which extended in to last week and beyond.

The following is an excerpt from the blog post by staffer Quentin Jenkins:

Although this site and our mail were knocked down for awhile, our data systems continued to work normally throughout the attack. At this time the main Spamhaus website is back up (that?s what you are reading!) and we?re bringing other public systems back up as this goes to press. Due to the unpredictable nature of DDoS attacks, we can?t provide an estimate of that progress, but we want those systems up as much as you do.

What we can tell you is that we are aware of the many people who have fixed their infected systems, and ISPs which have solved spam problems, and need to have IPs and domains removed from our lists (SBL, XBL/CBL, PBL and DBL). Those removal systems are being fixed as this is typed, and we will continue to provide updates as they come back online, in this blog article or in a newer one. Our best advice to you is to follow normal removal procedures, to re-try as needed (every hour or so) and to watch this blog for updates. Thanks for your co-operation as we ride out this attack.

The overall affect of such an attack is a global slowdown of services, cybersecurity expert and University of Surrey professor Alan Woodward told the BBC.

?If you imagine it as a motorway, attacks try and put enough traffic on there to clog up the on and off ramps,? he told the BBC. ?With this attack, there?s so much traffic it?s clogging up the motorway itself.?

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Source: http://www.sitepronews.com/2013/03/27/internet-slows-worldwide-due-to-largest-cyber-attack-in-history/

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