Mars Rover Detects Simple Organic Compounds


NASA's Mars rover Curiosity has detected several simple carbon-based organic compounds on Mars, but it remains unclear whether they were formed via Earthly contamination or whether they contain only elements indigenous to the planet.

Speaking at the American Geophysical Union annual meeting in San Francisco, Curiosity mission leaders also said that the compound perchlorate—identified previously in polar Mars—appeared to also be present in Gale Crater, the site of Curiosity's exploration.

The possible discovery of organics—or carbon-based compounds bonded to hydrogen, also called hydrocarbons—could have major implications for the mission's search for more complex organic material.

It would not necessarily mean that life exists now or ever existed on Mars, but it makes the possibility of Martian life—especially long ago when the planet was wetter and warmer—somewhat greater, since available carbon is considered to be so important to all known biology.

(See "Mars Curiosity Rover Finds Proof of Flowing Water—A First.")

The announcements came after several weeks of frenzied speculation about a "major discovery" by Curiosity on Mars. But project scientist John Grotzinger said that it remains too early to know whether Martian organics have been definitely discovered or if they're byproducts of contamination brought from Earth.

"When this data first came in, and then was confirmed in a second sample, we did have a hooting and hollering moment," he said.

"The enthusiasm we had was perhaps misunderstood. We're doing science at the pace of science, but news travels at a different speed."

Organics Detected Before on Mars

The organic compounds discovered—different combinations of carbon, hydrogen, and chlorine—are the same or similar to chlorinated organics detected in the mid-1970s by the Viking landers.

(Related: "Life on Mars Found by NASA's Viking Mission?")

At the time, the substances were written off as contamination brought from Earth, but now scientists know more about how the compounds could be formed on Mars. The big question remains whether the carbon found in the compounds is of Martian or Earthly origin.

Paul Mahaffy, the principal investigator of the instrument that may have found the simple organics—the Sample Analysis at Mars (SAM)—said that while the findings were not "definitive," they were significant and would require a great deal of further study.

Mahaffy also said the discovery came as a surprise, since the soil sample involved was hardly a prime target in the organics search. In fact, the soil was scooped primarily to clean out the rover's mobile laboratory and soil-delivery systems.

Called Rocknest, the site is a collection of rocks with rippled sand around them—an environment not considered particularly promising for discovery. The Curiosity team has always thought it had a much better chance of finding the organics in clays and sulfate minerals known to be present at the base of Mount Sharp, located in the Gale Crater, where the rover will head early next year.

(See the Mars rover Curiosity's first color pictures.)

The rover has been at Rocknest for a month and has scooped sand and soil five times. It was the first site where virtually all the instruments on Curiosity were used, Grotzinger said, and all of them proved to be working well.

They also worked well in unison—with one instrument giving the surprising signal that the minerals in the soil were not all crystalline, which led to the intensive examination of the non-crystalline portion to see if it contained any organics.

Rover Team "Very Confident"

The simple organics detected by SAM were in the chloromethane family, which contains compounds that are sometimes used to clean electronic equipment. Because it was plausible that Viking could have brought the compounds to Mars as contamination, that conclusion was broadly accepted.

But in 2010, Chris McKay of NASA's Ames Research Center and Rafael Navarro-Gonzalez of the National Autonomous University of Mexico published an influential paper describing how dichloromethane can be a byproduct of the heating of other organic material in the presence of the compound perchlorate.

They conducted the experiment because NASA's Phoenix mission had discovered large amounts of perchlorate in the northern polar soil of Mars, and it seems plausible that it would exist elsewhere on the planet.

"In terms of the SAM results, there are two important conclusions," said McKay, a scientist on the SAM team.

"The first is confirming the perchlorate story—that it's most likely there and seems to react at high temperatures with organic material to form the dichloromethane and other simple organics."

"The second is that we'll have to either find organics without perchlorates nearby, or find a way to get around that perchlorate wall that keeps us from identifying organics," he said.

Another SAM researcher, Danny Glavin of Goddard, said his team is "very confident" about the reported detection of the hydrocarbons, and that they were produced in the rover's ovens. He said it is clear that the chlorine in the compounds is from Mars, but less clear about the carbon.

"We will figure out what's going on here," he said. "We have the instruments and we have the people. And whatever the final conclusions, we will have learned important things about Mars that we can use in the months ahead."

Author of the National Geographic e-book Mars Landing 2012, Marc Kaufman has been a journalist for more than 35 years, including the past 12 as a science and space writer, foreign correspondent, and editor for the Washington Post. He is also author of First Contact: Scientific Breakthroughs in the Hunt for Life Beyond Earth, published in 2011, and has spoken extensively to crowds across the United States and abroad about astrobiology. He lives outside Washington, D.C., with his wife, Lynn Litterine.


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Kate's Illness Sometimes Linked to Twins













Hyperemesis gravidarum, the reason newly pregnant Kate Middleton is in the hospital, is a rare but acute morning sickness that results in weight loss and accounts for about 2 percent of all morning sickness, doctors say.


The condition is sometimes associated with women having twins, experts said.


Women diagnosed with hyperemesis gravidarum have lost 5 percent of their pre-pregnancy weight, or 10 pounds, said Dr. Ashley Roman, a professor and OB/GYN at New York University Langone Medical Center.


It poses little danger to the tiny heir, doctors said.


"It's traditionally thought that nausea and vomiting is a sign of a healthy pregnancy," Roman said


Dr. Nancy Cossler, an OB/GYN at University Hospitals in Ohio said the condition does not cause loss of pregnancy or birth defects, but it can be a torture to endure.


"The biggest problem with this is how it interferes with your life," Cossler said. "Constantly feeling sick and puking is difficult."


Click here to read about other women with hyperemesis gravidarum.


Hyperemesis gravidarum is thought to be caused by higher levels of the pregnancy hormone, hCG, or human chorionic gonadotropin, Cossler said. Extra hCG can often be brought on by carrying more than one fetus, she said.






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In other words, it could be a sign that Middleton is carrying twins. Although there's very little data on twins and hyperemesis gravidarum, one study showed that women carrying twins had a 7.5 percent higher risk of experiencing the acute morning sickness, Roman said.


The extreme morning sickness is usually diagnosed about nine weeks into the pregnancy, and in most cases resolves itself by 16 or 20 weeks, Roman said. In rare cases, it can last the whole pregnancy.


"As the pregnancy is in its very early stages, Her Royal Highness is expected to stay in hospital for several days and will require a period of rest thereafter," a statement from St. James Palace said. Prince William is at the hospital with Middleton, according to the Britain's Press Association.


Click here for photos of Kate through the years.


Roman said doctors prescribe vitamins and ginger capsules at first. If that doesn't stop the vomiting, they will prescribe antihistamines and stronger anti-nausea medications.


Women with hyperemesis gravidarum are also treated with fluids, said Dr. Jessica Young, an OB/GYN at Vanderbilt University. But if left untreated, a pregnant woman who is severely dehydrated for a long period of time could die, "just like any person," Young said.


In extreme cases in which the woman is losing weight and unable to eat, doctors will treat her with intravenous nutrition, Young said.


Hospital stays can vary, and women will often have to be admitted more than once before the condition passes, doctors said.


Hyperemesis gravidarum is somewhat mysterious because some expectant mothers have acute morning sickness during only one of their pregnancies, but have no morning sickness for subsequent pregnancies.


There is a chance that higher levels of hCG, which likely caused Middleton's nausea, could be a sign of a molar pregnancy instead of twins, Cossler said. This would mean Middleton is carrying only a benign growth in her uterus instead of a fetus, or she is carrying a fetus with abnormal DNA and a benign growth. Neither is considered a viable pregnancy.


However, Cossler said molar pregnancies become apparent early on, and doctors would already know whether Middleton had one.


"They would not have released this information," Cossler said of the birth announcement. "I'm certain that they have already eliminated both of those [types of molar pregnancies]."



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Retired military officers’ letter seeks to amend gun law to help battle suicides



Legislation added to the 2011 defense authorization bill at the urging of gun-rights advocates prohibits commanders from collecting any information about weapons privately owned by troops.

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SIA in talks to sell off Virgin Atlantic stake






SINGAPORE: Singapore Airlines said on Monday it was in talks with "interested parties" on a possible sale of its 49 per cent stake in Virgin Atlantic as media reports listed US carrier Delta Air Lines as a possible buyer.

"Singapore Airlines wishes to announce that it is in discussions with interested parties concerning the possible divestment of its 49 per cent shareholding in Virgin Atlantic Limited," the carrier said in a statement.

"These discussions may or may not result in a transaction," it added without naming any of the parties involved in the talks.

Virgin Atlantic was founded by British transport mogul Richard Branson in 1984, with the flamboyant entrepreneur owning a majority 51 per cent stake in the airline.

Britain's Sunday Times newspaper identified Delta as one of the interested parties and reported that the US carrier had approached SIA directly over the stake, which SIA had paid 600 million pounds for in 1999.

If the sale goes through, Delta's European partner, Air France-KLM, may then buy part of Branson's 51 per cent stake which would see him losing control for the first time of the airline he founded, the report added.

Delta was not immediately available for comment.

- AFP/xq



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FDI in retail to safeguard international market mafias' interest: BJP

ANI Dec 1, 2012, 03.28PM IST

NEW DELHI: India's main opposition Bharatiya Janata Party (BJP) today said retail reform is a step taken by the Congress led-federal government to safeguard the interests of the international market mafias at the cost of national interest.

BJP vice president Mukhtar Abbas Naqvi said on Saturday that voting inside the parliament would decide as to who is in favour of national interest and who is working for international interests.

"The government feels that their responsibility is to safeguard the interest of international market mafias instead of national interest and for saving the interest of international market mafias, the government is ready to compromise with national interests. Now, the parliament will decide as to who is in support of international market mafias and who are supporting national interests," said Naqvi.

The government's decision to allow foreign supermarket chains such as Wal-Mart had triggered protest not only from opposition parties but also from some of its allies.

BJP had sought debate on the issue of allowing Foreign Direct Investment (FDI) in the retail sector, under the rule that entails voting after discussions.

Meanwhile, Minister in the Prime Minister Office (PMO), V Narayanaswamy said the government would answer all the queries raised by the opposition parties in the parliament and will explain the benefits of allowing FDI in retail sector.

The lower house of parliament has set December 04 and 05 as the date to vote and debate on FDI. The dates for the upper house are yet to be decided.

Narayanaswamy said the government is confident of becoming victorious in the debate.

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Photos: Kilauea Lava Reaches the Sea









































































































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Boehner on Fiscal Cliff Talks: 'You Can't Be Serious'













President Obama and his White House team appear to have drawn a line in the sand in talks with House Republicans on the "fiscal cliff."


Tax rates on the wealthy are going up, the only question is how much?


"Those rates are going to have to go up," Treasury Secretary Tim Geithner flatly stated on ABC's "This Week." "There's no responsible way we can govern this country at a time of enormous threat, and risk, and challenge ... with those low rates in place for future generations."


But the president's plan, which Geithner delivered last week, has left the two sides far apart.


In recounting his response today on "Fox News Sunday," House Speaker John Boehner said: "I was flabbergasted. I looked at him and said, 'You can't be serious.'


"The president's idea of negotiation is: Roll over and do what I ask," Boehner added.


The president has never asked for so much additional tax revenue. He wants another $1.6 trillion over the next 10 years, including returning the tax rate on income above $250,000 a year to 39.6 percent.






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Boehner is offering half that, $800 billion.


In exchange, the president suggests $600 billion in cuts to Medicare and other programs. House Republicans say that is not enough, but they have not publicly listed what they would cut.


Geithner said the ball is now in the Republicans' court, and the White House is seemingly content to sit and wait for Republicans to come around.


"They have to come to us and tell us what they think they need. What we can't do is to keep guessing," he said.


The president is also calling for more stimulus spending totaling $200 billion for unemployment benefits, training, and infrastructure projects.


"All of this stimulus spending would literally be more than the spending cuts that he was willing to put on the table," Boehner said.


Boehner also voiced some derision over the president's proposal to strip Congress of power over the country's debt level, and whether it should be raised.


"Congress is not going to give up this power," he said. "It's the only way to leverage the political process to produce more change than what it would if left alone."


The so-called fiscal cliff, a mixture of automatic tax increases and spending cuts, is triggered on Jan. 1 if Congress and the White House do not come up with a deficit-cutting deal first.


The tax increases would cost the average family between $2,000 and $2,400 a year, which, coupled with the $500 billion in spending cuts, will most likely put the country back into recession, economists say.



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DIA sending hundreds more spies overseas



The project is aimed at transforming the Defense Intelligence Agency, which has been dominated for the past decade by the demands of two wars, into a spy service focused on emerging threats and more closely aligned with the CIA and elite military commando units.

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Big plans to make comeback in post-crisis Dubai






DUBAI: Dubai is back in the business of unveiling mega projects, three years after a severe financial crisis crippled its booming property sector, but doubts still linger over finance and feasibility.

Just as the economy in the glitzy city-state begins to look promising, despite a large debt burden dating back to the years when growth appeared endless, Dubai has once again set its sights on building superlatives.

"We do not anticipate the future. We build it," Dubai's ruler Sheikh Mohammed bin Rashid al-Maktoum, architect of its meteoric rise into a regional tourism and services hub, boasted last week as he unveiled plans to build a "city" carrying his name.

Among the attractions of the new mega plan is a mall touted to be the largest in the world, not far from what is already the world's largest shopping and entertainment destination, the Dubai Mall.

Mohammed bin Rashid City will sprawl over a large swathe of the emirate's desert and have gardens 30 per cent larger than London's Hyde Park, in addition to 100 hotels, and a Universal Studios theme park.

No price tag was attached to the project which is to be developed by the ruler's Dubai Holding conglomerate and Emaar, which built Burj Khalifa, the world's tallest tower.

This week, Dubai also announced a 10 billion dirham (US$2.7 billion) leisure centre and theme parks.

Dubai appears keen to capitalise on its growing tourism sector which it said is expanding 13 per cent a year, with hotel occupancy rate hitting 82 per cent last year.

Sheikh Mohammed said the emirate must stay ahead of expanding demand and match its ambitions.

"The current facilities available in Dubai need to be scaled up in line with the future ambitions for the city," he said, highlighting a constant rise in tourism and the business of hosting forums and exhibitions.

"A large part of these projects are linked to expanding Dubai's capacity in core sectors with comparative advantage, such as tourism, which is positive," said Monica Malik, chief economist at EFG-Hermes investment bank in Dubai.

But the source of funding for such grandiose projects remains vague.

"We do have our own resources and way to finance... We are sure that these projects will be achieved," the Arabian Business online magazine quoted Hani al-Hamli, Dubai Economic Council secretary general, as saying.

Beyond general assurances, Dubai continues to deal with the burden of maturing debt, after it racked US$113 billion in borrowings during years of extensive investments, with US$9.8 billion reportedly coming due next year and US$3 billion in 2014.

"Banks remain wary about lending to real estate developments at a time when they still have to make major provisions against non-performing real estate loans from the last development boom," said real estate consultancy firm Jones Lang LaSalle in a statement on Thursday.

However, "the fact that these projects have long-term time lines is positive as they can be developed alongside demand, both domestically and internationally, so as not to build overcapacity," Malik told AFP.

"The funding of these plans is important and should be matched with revenue growth potential," she added.

Dubai's economy contracted 2.4 per cent in 2009 when it rattled global markets over its debt crisis before receiving a US$10-billion bailout from Abu Dhabi, its oil-rich partner in the Emirates, and reaching restructuring deals with lenders.

The economy has since made a comeback, growing 2.8 per cent in 2010, 3.4 per cent in 2011, and 4.1 per cent on an annual basis in the first half of this year, as tourism, trade and transport keep expanding.

But real estate -- a main engine of rapid growth before the crisis -- lags behind other sectors, with growth of just 1.5 per cent in the first six months of 2012.

The sector crashed in 2009 as the global crisis dried up finance and investors walked away from planned projects, many of which were eventually put on hold or cancelled.

"Encouragingly, there are indications that some of the lessons of the last real estate crisis have been learned," said Jones Lang LaSalle.

"The most important of these is the need to adopt a long-term and coordinated approach, rather than developing too much real estate too quickly."

- AFP/xq



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FDI in retail to safeguard international market mafias' interest: BJP

NEW DELHI: India's main opposition Bharatiya Janata Party (BJP) today said retail reform is a step taken by the Congress led-federal government to safeguard the interests of the international market mafias at the cost of national interest.

BJP vice president Mukhtar Abbas Naqvi said on Saturday that voting inside the parliament would decide as to who is in favour of national interest and who is working for international interests.

"The government feels that their responsibility is to safeguard the interest of international market mafias instead of national interest and for saving the interest of international market mafias, the government is ready to compromise with national interests. Now, the parliament will decide as to who is in support of international market mafias and who are supporting national interests," said Naqvi.

The government's decision to allow foreign supermarket chains such as Wal-Mart had triggered protest not only from opposition parties but also from some of its allies.

BJP had sought debate on the issue of allowing Foreign Direct Investment (FDI) in the retail sector, under the rule that entails voting after discussions.

Meanwhile, Minister in the Prime Minister Office (PMO), V Narayanaswamy said the government would answer all the queries raised by the opposition parties in the parliament and will explain the benefits of allowing FDI in retail sector.

The lower house of parliament has set December 04 and 05 as the date to vote and debate on FDI. The dates for the upper house are yet to be decided.

Narayanaswamy said the government is confident of becoming victorious in the debate.

Read More..