Humans Swap DNA More Readily Than They Swap Stories

Jane J. Lee

Once upon a time, someone in 14th-century Europe told a tale of two girls—a kind one who was rewarded for her manners and willingness to work hard, and an unkind girl who was punished for her greed and selfishness.

This version was part of a long line of variations that eventually spread throughout Europe, finding their way into the Brothers Grimm fairytales as Frau Holle, and even into Shakespeare's The Merchant of Venice. (Watch a video of the Frau Holle fairytale.)

In a new study, evolutionary psychologist Quentin Atkinson is using the popular tale of the kind and unkind girls to study how human culture differs within and between groups, and how easily the story moved from one group to another.

Atkinson, of the University of Auckland in New Zealand, and his co-authors employed tools normally used to study genetic variation within a species, such as people, to look at variations in this folktale throughout Europe.

The researchers found that there were significant differences in the folktale between ethnolinguistic groups—or groups bound together by language and ethnicity. From this, the scientists concluded that it's much harder for cultural information to move between groups than it is for genes.

The study, published February 5 in Proceedings of the Royal Society B, found that about 9 percent of the variation in the tale of the two girls occurred between ethnolinguistic groups. Previous studies looking at the genetic diversity across groups in Europe found levels of variation less than one percent.

For example, there's a part of the story in which the girls meet a witch who asks them to perform some chores. In different renditions of the tale, the meeting took place by a river, at the bottom of a well, or in a cave. Other versions had the girls meeting with three old men or the Virgin Mary, said Atkinson.

Conformity

Researchers have viewed human culture through the lens of genetics for decades, said Atkinson. "It's a fair comparison in the sense that it's just variation across human groups."

But unlike genes, which move into a population relatively easily and can propagate randomly, it's harder for new ideas to take hold in a group, he said. Even if a tale can bridge the "ethnolinguistic boundary," there are still forces that might work against a new cultural variation that wouldn't necessarily affect genes.

"Humans don't copy the ideas they hear randomly," Atkinson said. "We don't just choose ... the first story we hear and pass it on.

"We show what's called a conformist bias—we'll tend to aggregate across what we think everyone else in the population is doing," he explained. If someone comes along and tells a story a little differently, most likely, people will ignore those differences and tell the story like everyone else is telling it.

"That makes it more difficult for new ideas to come in," Atkinson said.

Cultural Boundaries

Atkinson and his colleagues found that if two versions of the folktale were found only six miles (ten kilometers) away from each other but came from different ethnolinguistic groups, such as the French and the Germans, then those versions were as different from each other as two versions taken from within the same group—say just the Germans—located 62 miles (100 kilometers) away from each other.

"To me, the take-home message is that cultural groups strongly constrain the flow of information, and this enables them to develop highly local cultural traditions and norms," said Mark Pagel, of the University of Reading in the U.K., who wasn't involved in the new study.

Pagel, who studies the evolution of human behavior, said by email that he views cultural groups almost like biological species. But these groups, which he calls "cultural survival vehicles," are more powerful in some ways than our genes.

That's because when immigrants from a particular cultural group move into a new one, they bring genetic diversity that, if the immigrants have children, get mixed around, changing the new population's gene pool. But the new population's culture doesn't necessarily change.

Atkinson plans to keep using the tools of the population-genetics trade to see if the patterns he found in the variations of the kind and unkind girls hold true for other folktale variants in Europe and around the world.

Humans do a lot of interesting things, Atkinson said. "[And] the most interesting things aren't coded in our DNA."

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Galaxy May Be Full of 'Second Earths'

You may look out on a starry night and get a lonely feeling, but astronomers now say our Milky Way galaxy may be thick with planets much like Earth -- perhaps 4.5 billion of them, according to the Harvard-Smithsonian Center for Astrophysics.

Astronomers looked at data from NASA's Kepler space telescope in orbit, and conclude that 6 percent of the red dwarf stars in the Milky Way probably have Earth-like, habitable planets. That's a lot by space standards, and since red dwarfs are very common -- they make up three out of four stars in our part of the galaxy -- we may have a lot more neighbors than we thought.

The nearest of them, astronomers said today, could be 13 light-years away -- not exactly commuting distance, since a light-year is six trillion miles, but a lot closer than most yellow stars like Earth's sun.

Video: Are We Alone? Kepler's Mission

David A. Aguilar/Harvard-Smithsonian Center for Astrophysics

"We thought we would have to search vast distances to find an Earth-like planet. Now we realize another Earth is probably in our own backyard, waiting to be spotted," said Courtney Dressing, an astronomer at the Harvard-Smithsonian Center, in announcing the findings today. The results will be published in The Astrophysical Journal.

David Charbonneau, a co-author, said, "We now know the rate of occurrence of habitable planets around the most common stars in our galaxy. That rate implies that it will be significantly easier to search for life beyond the solar system than we previously thought."

Red dwarfs are older, smaller and dimmer than our sun, but a planet orbiting close to one could be sufficiently warmed to have liquid water. Dressing and her colleagues cited three possible planets that were spotted by Kepler, which was launched in 2009. One is 90 percent as large as Earth, and orbits its red sun in just 20 of our days.

There is no saying what such a world would actually be like; the Kepler probe can only show whether distant stars have objects periodically passing in front of them. But based on that, scientists can do some math and estimate the mass and orbit of these possible planets. So far, Kepler has spotted more than 2,700 of them in the small patch of sky it has been watching.

There are estimated to be 200 to 400 billion stars in the Milky Way -- which is probably a pretty average galaxy. So the new estimate implies a universe with tremendous numbers of Earth-like planets, far beyond our ability to count.

Pictures: Final Frontier: Images From the Distant Universe

Could they be friendly to life? There's no way to know yet, but space scientists say that if you have the right ingredients -- a planet the right size, temperatures that allow for liquid water, organic molecules and so forth -- and the chances may be good, even on a planet that is very different from ours.

"You don't need an Earth clone to have life," said Dressing.

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Strengthening security at the nation’s airports

Most people think of airport security as their walk through the metal detector and the eyeballing by transportation security officers (TSOs). Dan Liddell, whose job it is to protect the flying public at seven airports in central New York, instead sees 17 zones of worker responsibility and hundreds of different tasks.

In pursuit of safeguarding the public, Liddell, a federal security director based in Syracuse, has written a book that is now used to train TSOs. It’s called the “National Standardization Guide to Improving Security Effectiveness.” Tasks at each duty area have been inventoried and cataloged, and the “knowledge, values and skills” associated with the airport security jobs have been identified under what Liddell describes as a systems approach to training.

As important as it is to use X-ray machines and explosive trace-detection equipment and to have the correct rules and procedures in place, Liddell said transportation security relies on the skills of the people responsible for it.

“People performance is the cornerstone,” he said. “When I set out to improve things, I look at the people. I look at their proficiency, their skill in doing something and how well they’re doing that job.”

Even when people have the skills to do their jobs, they don’t necessarily do them well each time, especially when conditions can vary with each day and every passenger. To keep performance high, TSOs are tested covertly at unexpected times. A banned item will be sent through a checkpoint and the reaction and activities that take place are monitored.

Whether or not TSOs spot contraband, everyone at that checkpoint during the test participates in an “after-action” review. “It’s the learning experience that’s relevant,” Liddell said. “We’re doing a review of actual performance and you can always improve.”

Liddell is sensitive to the pressure that airport security personnel face. TSOs have the tough of performing multiple tasks under constant camera surveillance and public scrutiny, often interacting with tired or irritated travelers. The testing and training helps them continually up their game.

Thirty airports around the country that helped test the training system and now use a version of it. Paul Armes, federal security director at Nashville International Airport, was interested in creating such a system with a colleague when they both worked in Arizona, but it “never got traction.”

When he learned about what Liddell was doing, he was eager to participate. “Typical of Dan, he built it himself and practiced it so he had hard metric results, and then he started reaching out to some of us, working with his counterparts around the country to get a good representative sample,” Armes said. “He sees things others don’t see sometimes and he has the capability to drill down into the details.”

Liddell began the “pretty long process” of analyzing how people were performing at checkpoints in 2009. He sat down with subject-matter experts to produce the task inventory he now uses. In 2010, he improved the review and reporting process that occurs after covert tests events and instituted the security practices he refined at the other New York airports he oversees, including Greater Binghamton, Ithaca and four others. “I love breaking it down,” he said. “I’ve got a quest for improvement.”

In a less sneaky version of the television show, “Undercover Boss,” Liddell went through the new-hire training program for his employees to understand as much as he could about the jobs and the training provided for them, he said.

If pursuing knowledge is in Liddell’s genes, it may be because his parents were both in education. His father was a high school principal and his mother was a fifth-grade teacher. His teaching manifested itself instead in the training realm, where he strives to educate security employees as effectively as possible, inside the classroom and out.

“It’s always a challenge to meet that right balance of really great effectiveness and really great efficiency,” he said. “There are always challenges. It’s what gets me up in the morning, trying to improve.”

This article was jointly prepared by the Partnership for Public Service, a group seeking to enhance the performance of the federal government, and washingtonpost.com. Go to http://washingtonpost.com/wp-srv/politics/fedpage/players/ to read about other federal workers who are making a difference.

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Passion in US lower house immigration debate

WASHINGTON: US lawmakers debated plans on Tuesday to build a pathway to citizenship for millions of immigrants who remade their lives in America but found themselves at the heart of a fierce debate.

President Barack Obama and a group of Republican and Democratic senators have submitted plans for reform, but as the House of Representatives took up the issue, there were signs the bipartisan facade is coming under strain.

While from the Democratic side of the aisle, a rising Hispanic-American political star made an impassioned plea to fix a broken system, more senior Republicans warned against pushing too fast for change.

"Immigration is more than a political issue. It's who we are," said Julian Castro, the charismatic young mayor of San Antonio, Texas who had a star turn last year on the stage of the Democratic National Convention.

"Immigrants have made ours the greatest country in the world," he told a packed House Judiciary Committee hearing. "Doing nothing is not an option."

But Bob Goodlatte, chairman of the committee, warned against a "rush to judgment" -- despite concerns among his Republican colleagues that they have lost the support of a generation of Hispanic and Asian voters.

"I think we can all agree that our nation's immigration system is in desperate need of repair and it is not working as efficiently and fairly as it should be," he told the first of several hearings on the issue.

Goodlatte warned his panel "needs to take the time to learn from the past so our efforts to reform our immigration laws do not repeat the same mistakes."

The burst of activity on Capitol Hill marks the best chance in years to craft legislation to tighten border security, improve employment verification and bring some 11 million illegal immigrants out of limbo.

A 2007 effort spearheaded by then-president George W. Bush failed.

Obama and top Republicans are for once in agreement that political and demographic trends have suddenly shifted to offer the best chance for serious reform in a generation.

November's election saw Obama re-elected with 70 percent backing from Hispanic American voters -- many of whom have friends or relatives seeking papers.

It shook Republicans into realizing that their tough stance on immigration had driven Hispanics away from the party, and party luminaries like Senator Marco Rubio have come out strongly in favor of immigration reform.

But differences remain, particularly in the contentious issue of how to accommodate the millions who entered the country without permission, or who came in legally but overstayed their visas.

The issue bubbled over in the hearing room when about eight protesters stood up with fists raised, and chanted "undocumented and unafraid!" for about 30 seconds before walking out.

Castro said a pathway to citizenship, similar to the one proposed by the bipartisan group of senators last month, was crucial in order to bring 11 million undocumented immigrants "out of the shadows and into the full light of the American dream."

Republican Goodlatte pushed back, seeking to carve a possible compromise option short of full citizenship for those who entered illegally or stayed beyond their visa.

"Are there options that we should consider between the extremes of mass deportation and a pathway to citizenship for those not lawfully present in the United States?" Goodlatte asked.

Democratic congresswoman Zoe Lofgren, a former immigration lawyer from California, conceded the system was dysfunctional, but that "partial legalization, as some are suggesting, is a dangerous path."

She argued that merely providing undocumented workers with legal status but no way to work towards full citizenship could create a "permanent underclass," while kicking the undocumented out en masse would trigger economic chaos.

With up to 90 percent of the estimated two million migrant farm workers in the country illegally, "you could do e-verify and find out they're not properly here and American agriculture would collapse."

Obama addressed the immigration issue Tuesday as well, hosting meetings with more than two dozen progressive leaders and business executives.

Steve Case, co-founder of America Online, said he was encouraged by the discussion at the White House.

"The president and his team listened to numerous proposals, outlined many of their own and expressed a desire to build a bipartisan consensus regarding comprehensive immigration reform," Case said.

-AFP/ac

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Railways seeks Cabinet nod for two key links to Chhattisgarh

NEW DELHI: In a bid to ensure connectivity to coal fields to ensure fuel supply to power plants, railways has sought Cabinet approval for construction of two crucial rail links in Chhattisgarh. Both these projects have been pending for long.

The proposed rail links —122-km Gevra Road-Pendra Road and 63-km Raigarh (Mand colliery)-Bhupdeopur stretches — is part of an ambitious project aimed at ensuring smooth movement of freight, including coal.

The Cabinet's approval has also been sought for doubling of 248-km-long Palanpur-Samakhiali link, which will help industries in Gujarat's Kutch area to transport goods in time.

The project is expected to cater to immense potential of bulk traffic from port as well as from the Kutch region.

For Chhattisgarh projects, railways had signed MoU with state government and South Eastern Coalfields for construction of about 300 km of rail network.

The projects — East Corridor and East-West Corridor — would come up at an estimated cost of Rs 4,000 crore. The East Corridor will be about 180 km, stretching from Bhupdeopur-Gharghoda-Dharamjaygarh upto Korba and the 122-km-long East-West Corridor will be from Gevra Road to Pendra Road.

The move came at a time when coal ministry had warned of severe shortage of the mineral for thermal power plants across the country, if railway links to connect coal fields in Jharkhand, Odisha and Chhattisgarh are not completed within next three years.

The Mand Raigarh coalfield also holds a potential of 100 metric tonnes per annum.

The coal ministry has been arguing that it would not be possible for the Coal India Limited (CIL) to achieve either the targeted production of 615 million tonnes of coal by 2016-17 or any incremental coal production during the 12th Five Year Plan if the rail tracks in coal-producing states of Chhattisgarh, Jharkhand and Odisha are not put in place within the next three years.

It was pointed out that western states like Rajasthan, Maharashtra and Gujarat will suffer if the proposed railway line in Chhattisgarh does not materialize.

The delay in getting clearances for these rail lines has left the Prime Minister's Office (PMO) worried. According to sources, the PMO has given direction to fast track the construction of these railway tracks.

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Life Found Deep Under Antarctic Ice For First Time?

For the first time, scientists believe they have collected life-forms from deep under the Antarctic ice.

Last week, a team found and collected microbes in a lake hidden under more than a half-mile of ice. (Related: "Race Is On to Find Life Under Antarctic Ice.")

Among other things, the discovery may shed light on what lies under the icy moons of Jupiter and Saturn.

The newfound life-forms have little connection to life on the earth's surface and many apparently survive by "eating rocks," team member Brent Christner said in an interview from the U.S. McMurdo Station, after spending several weeks working at a remote field site at Lake Whillans.

That may explain how life on other celestial objects—such as on the moons of Jupiter and Saturn—survive in the absence of available carbon.

"The conditions faced by organisms in Lake Whillans are quite parallel to what we think it would be like on those icy moons," Christner said.

"What we found tells us a lot about extreme life on Earth," and how similar life beyond Earth might survive.

Making a Living in Ice

A 50-member U.S. team broke through to the 20-square-mile (50-square-kilometer) subglacial lake on January 28, and had two days of 24-hour sunlight to bring up samples before the borehole began to close. A day of reaming the hole was followed by two more days of sample collection.

The scientists are now returning with a four-day haul of lake water, lake bottom sediments, and hundreds of dishes of living organisms that are being cultured for intensive study in the United States.

An early task will be to make sure the newfound microbes were not introduced while drilling through the ice into the lake, which involved a hot-water drilling technique designed to greatly reduce or eliminate any contamination that might come from other kerosene-based drilling technology, Christner said.

Christner said that a commonly used dye was added to the water to illuminate the DNA of the microscopic organisms, and a substantial green glow told scientists that microbes were indeed present. Many of the organisms are likely chemolithotrophs, which rely on inorganic compounds of iron, sulfur, and other elements for nourishment.

Montana State's John Priscu, chief biologist of the Whillans Ice Stream Subglacial Access Research Drilling (WISSARD) program, said lab work at the drill site determined that microbial cells were present—and that they were alive. (Take an Antarctic quiz.)

"I believe it is safe to say that subglacial lake beneath the Whillans Ice Stream supports a microbial assemblage that is growing within this dark and cold habitat" of 31 degrees Fahrenheit (-0.5 Celsius), he wrote in an email.

DNA sequencing in the U.S. "will tell us who they are and, together with other experiments, tell us how they make a living."

Hidden Lakes

The U.S. team is one of three digging into what is now known to be a vast system of lakes and streams deep below the surface of Antarctica. (See "Chain of Cascading Lakes Discovered Under Antarctica.")

A British team attempting to drill into much deeper Lake Ellsworth had to return home in December because of equipment failure, but a Russian team is also at work now retrieving a core of water from Lake Vostok.

With much fanfare, the Lake Vostok core was pulled up last year from more than 2.5 miles (4 kilometers) below the frigid surface. Vostok is much deeper and larger than any other Antarctic lake, and both it and Ellsworth lie under much colder ice and are believed to have less deep subsurface water flowing in and out than does Whillans.

The existence of subglacial lakes and streams in Antarctica is a relatively new discovery, and the size of this wet world under the ice has only been grasped in recent years. (See Antarctic pictures by National Geographic readers.)

Helen Fricker, a glaciologist at the Scripps Institution of Oceanography and a principal investigator of the Whillans team, first described Lake Whillans in 2007.

Using satellite data, she and her colleagues discovered a periodic rising and falling of the ice surface above the Whillans Ice Stream between 2003 and 2006, and concluded that a lake was likely underneath.

The dynamics of Antarctic ice has taken on a much greater significance in the era of global warming, since some 90 percent of Earth's fresh water sits on the continent.

Although the lakes themselves are not affected by warming, how they interact with the region's ice is important to predicting the future behavior of the ice sheets.

For instance, understanding whether the ice is moving more quickly toward the surrounding ocean is a key goal of the WISSARD project, which is part of a larger U.S. National Science Foundation project to understand the ice movements, glaciers, and biology of the ice sheet of West Antarctica.

More Work to Be Done

For Christner, a specialist in Antarctic biology at Louisiana State University, the work has only just begun. (Also see "Pictures: 'Extreme' Antarctic Science Revealed.")

Two labs were brought to the Whillans site by a caravan of trucks from McMurdo: One to perform a quick analysis of the lake water, and the other to examine sediment.

Christner's team is charged with culturing samples in dishes so they can be studied more extensively later. He said some of the microbe species, including bacteria and archaea, may be unique, but many may well be found elsewhere—at great ocean depths and deep underground.

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Sierra's Family Selling Photos to Cover Funeral, Kids

The family of Sarai Sierra, an amateur New York photographer slain while on a trip to Turkey, put her photos up for sale today and quickly sold enough photographs to pay forher funeral, the woman's brother said today.

The photos remain on sale and the profits will now be going to her two young sons, the family said.

Sierra, 33, was found bludgeoned to death near a highway in Istanbul on Saturday. Her iPhone and iPad, the tools she used to share her photos with her thousands of Instagram followers were reportedly missing.

The Staten Island mother of two traveled to Turkey alone on Jan. 7 after a friend had to cancel. It was Sierra's first overseas trip, and she kept in contact with her family the entire time, they said, sharing stories of her journey and posting photos online.

"Sarai's passion for photography and love for capturing the beauty we see in culture, architecture and scenery was her reason for traveling to Istanbul," her brother, David Jimenez, wrote on a website set up to sell his sister's photography.

Among the photos for sale are Istanbul sunsets, and shots of Sierra's beloved New York City.

Courtesy Sarai Sierra's family

New Clues in Death of Missing American Mother Watch Video

Sarai Sierra's Body Found: Missing New York Mom Found in Turkey Watch Video

Body Found in Search for Missing Mother in Turkey Watch Video

By this afternoon, Jimenez put out another message saying, "Hey Instacanvas, Thank you for all the support in purchasing Sarai's pictures. Quick update, all expenses for Sarai's funeral have been paid for! From here on out any picture of hers that you purchase will NOT be going towards her funeral. All funds will be going to her children. Thank you for your support. David"

Sierra had been scheduled to arrive home at Newark Liberty International Airport on Jan. 22. When her husband, Steven Sierra, called the airline, he was told his wife never boarded the flight from Istanbul.

Steven Sierra and Jimenez traveled to Istanbul to aid in the search.

An intense two week search for for Sarai Sierra ended when her battered body was found.

An autopsy was completed Sunday, but results aren't expected for three months. Turkish officials however said Sierra was killed by at least one fatal blow to her head.

A casket holding the Staten Island mother was taken to a Istanbul church Monday where it remains as Sierra's family makes arrangements to bring her home.

Turkish police hope DNA samples from 21 people being questioned in the case will be key to finding the perpetrators, state media reported. A motive is not yet clear.

"They're still investigating so they might think it might be a robbery, but they're not sure," said Betsy Jimenez, Sierra's mother, said Monday.

The family also faces the heartbreaking task of telling Sierra's two sons, ages 11 and 9, that their mother is dead.

The boys have been under the impression that their father has gone to Turkey to bring their mother home - alive.

"It's going to be the hardest thing he's ever going to have to do in his life," said Rep. Michael Grimm, (R-NY) who added that the Staten Island family isn't sure when Steven Sierra will be able to bring his wife's body home.

ABC News' Josh Haskell contributed to this report.

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In mice, gene therapy boosts hope for the deaf

PARIS: Scientists using gene therapy have partially restored hearing and balance in profoundly deaf mice, according to a study published on Monday in the journal Nature Medicine.

The research, still in its early stages and restricted to lab animals, may open up new avenues for tackling Usher syndrome, an inherited form of human deafness that usually goes hand in hand with blindness.

Researchers led by Michelle Hastings at the Rosalind Franklin University of Medicine and Science in Chicago, Illinois, aimed at a gene called USH1C which has been implicated in the "Type 1" form of Usher syndrome.

USH1C controls a protein called harmonin, which plays a vital role in hair cells -- the cells in the cochlea of the inner ear that respond to sound waves and send an electrical signal to the brain.

The team devised a tiny strand of genetic material called an antisense oligonucleotide to "switch off" a faulty version of the gene that produces truncated forms of the protein.

The therapy was injected in newborn mice that had been genetically engineered to have the mutation.

A single injection partially restored their hearing at very low frequencies, and also reduced head tossing, a behaviour caused by impaired balance.

"These effects were sustained for several months, providing evidence that congenital deafness can be effectively overcome by treatment early in development to correct gene expression," the study says.

After the experiment, the mice were dissected, and their cochleas were found to have grown some hair cells.

The success of antisense oligonucleotides adds a further weapon in the quest to overcome deafness.

Last month, doctors at the Massachusetts Eye and Ear and Harvard Medical School reported on a gene drug that transformed cells in the cochlea into hair cells.

In 2012, investigators at the University of California, San Francisco targeted a fix for a faulty version of a gene called VGLUT3. The gene controls a protein that is vital for hair cells to send the signals they pick up.

- AFP/jc

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Andhra Pradesh CM’s busy day in Delhi triggers Telangana rumours

NEW DELHI: A flurry of meetings that chief minister Kiran Kumar Reddy had with top Congress leaders here on Monday once again triggered speculations that the UPA government is keen on an early solution to the Telangana issue. While Kiran Kumar avoided the media after the meetings, sources claimed that apart from the separate state imbroglio, several state-related issues were discussed.

The leaders whom the CM met included Congress president Sonia Gandhi, and indications are that he would stay on in the national capital for one more day on Tuesday. For the first time, the CM held a one-on-one meeting with the Congress chief that lasted for an hour and the two of them were later joined by Sonia's political secretary Ahmed Patel. "Telangana, including the timing of the announcement and what should precede it, figured prominently in the talks," claimed the sources.

Soon after landing in Delhi, the CM drove down straight to the residence of AICC general secretary Ghulam Nabi Azad and was closeted with him for over an hour. During the day, Kiran also met Union home minister Sushilkumar Shinde, AICC treasurer Motilal Vora and senior leader Digvijay Singh. The CM also called on President Pranab Mukherjee in the afternoon.

All these meetings took place amid the mounting pressure from the TRS and TJAC for an early decision on statehood issue. The TJAC has given a call to target the T-ministers and has also threatened a social boycott of the ministers to pressure them to resign from the cabinet in protest against the delay in the announcement of T by the UPA government.

A close aide of the chief minister said Kiran Kumar presented a report to the central leadership on the party's performance in the elections to the primary agricultural cooperative societies. "This is the first time the CM has come with some encouraging news on the electoral front as the ruling party under him has won with a thumping majority in these elections at a time when even the party leaders were not hopeful of a good show," he said.

According to other sources, Azad questioned the CM about the manner in which the P Shanakr Rao episode was handled as well as the situation in Hyderabad in the wake of the arrest of MIM MLA Akbaruddin Owaisi in the hate speech case and the growing tension between the Congress and the MIM.

In the meantime, Tamil Nadu governor K Rosaiah also landed in Delhi on Monday. The Congress sources said Rosaiah too might be consulted on the Telangana issue on Tuesday.

In another development, Union tourism minister K Chiranjeevi met AICC vice president Rahul Gandhi. Two aspirants for the post of PCC president, ministers Ponnala Lakshmaiah and Kanna Lakshminarayana are also in Delhi amid speculations that they are vying for the post of PCC president in case Botsa Satyanarayana is shifted. After the CM, Botsa is expected to be summoned to Delhi for consultations on Telangana.

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Space Pictures This Week: A Space Monkey, Printing a Moon Base

Illustration courtesy Foster and Partners/ESA

The European Space Agency (ESA) announced January 31 that it is looking into building a moon base (pictured in an artist's conception) using a technique called 3-D printing.

It probably won't be as easy as whipping out a printer, hooking it to a computer, and pressing "print," but using lunar soils as the basis for actual building blocks could be a possibility.

"Terrestrial 3-D printing technology has produced entire structures," said Laurent Pambaguian, head of the project for ESA, in a statement.

On Earth, 3-D printing, also known as additive manufacturing, produces a three-dimensional object from a digital file. The computer takes cross-sectional slices of the structure to be printed and sends it to the 3-D printer. The printer bonds liquid or powder materials in the shape of each slice, gradually building up the structure. (Watch how future astronauts could print tools in space.)

The ESA and its industrial partners have already manufactured a 1.7 ton (1.5 tonne) honeycombed building block to demonstrate what future construction materials would look like.

—Jane J. Lee

Published February 4, 2013

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