Best Space Pictures of 2012: Editor's Picks

Photograph courtesy Tunç Tezel, APOY/Royal Observatory

This image of the Milky Way's vast star fields hanging over a valley of human-made light was recognized in the 2012 Astronomy Photographer of the Year competition run by the U.K.’s Royal Observatory Greenwich.

To get the shot, photographer Tunç Tezel trekked to Uludag National Park near his hometown of Bursa, Turkey. He intended to watch the moon and evening planets, then take in the Perseids meteor shower.

"We live in a spiral arm of the Milky Way, so when we gaze through the thickness of our galaxy, we see it as a band of dense star fields encircling the sky," said Marek Kukula, the Royal Observatory's public astronomer and a contest judge.

Full story>>

Why We Love It

"I like the way this view of the Milky Way also shows us a compelling foreground landscape. It also hints at the astronomy problems caused by light pollution."—Chris Combs, news photo editor

Published December 11, 2012

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Cops Have Identity of Gunman in Oregon Shooting













A masked gunman who opened fire in the crowded Clackamas Town Center mall in suburban Portland, Ore., killing two individuals and seriously injuring a third before killing himself, has been identified by police, though they have not yet released his name.


The shooter, wearing a white hockey mask, black clothing, and a bullet proof vest, tore through the mall around 3:30 p.m. Tuesday, entering through a Macy's store and proceeding to the food court and public areas spraying bullets, according to witness reports.


"We have been able to identify the shooter over last night," Sheriff Craig Roberts told "Good Morning America" today.
"At this point in time, because of the investigation, we're actually doing supplemental search warrants, we're not able to release the name of the individual at point in time for the reason being that we don't want to jeopardize the investigation."


Police have not released the names of the two deceased. Clackamas County Sheriff's Department Lt. James Rhodes said authorities are in the process of notifying victims' families.


The injured victim has been transported to a local hospital, according to Clackamas County Sheriff Craig Roberts.


PHOTOS: Oregon Mall Shooting


Nadia Telguz, who said she was a friend of the injured victim, told ABC News affiliate KATU-TV in Portland that the woman was expected to recover.


"My friend's sister got shot," Teleguz told KATU. "She's on her way to (Oregon Health and Science University hospital). They're saying she got shot in her side and so it's not life-threatening, so she'll be OK."






Christopher Onstott/Pamplen Media Group/Portland Tribune















911 Calls From New Jersey Supermarket Shooting Watch Video





Witnesses from the shooting rampage said that a young man who appeared to be a teenager ran through the upper level of Macy's to the mall food court, firing multiple shots, one right after the other, with what is believed to be a black, semi-automatic rifle.


More than 10,000 shoppers were at the mall during the day, police said. Roberts said that officers responded to the scene of the shooting within minutes, and four SWAT teams swept the 1.4 million-square-foot building searching for the shooter. He was eventually found dead, an apparent suicide.


"I can confirm the shooter is dead of an apparent self-inflicted gunshot wound," Rhodes said. "By all accounts there were no rounds fired by law enforcement today in the mall."


Roberts said more than 100 law enforcement officers responded to the shooting, and at least four local agencies were working on the investigation, including the FBI and Bureau of Alcohol, Tobacco and Firearms, which is working to trace the shooter's weapon.


READ: Guns in America: A Statistical Look


"For all of us, the mall is supposed to be a place where we can take our families, especially during the holiday season," Roberts said. "Things like this are not supposed to happen."


Roberts also said that shoppers, including two emergency room nurses and one physician who happened to be at the mall, provided medical assistance to victims who had been shot. Other shoppers helped escort individuals out of the mall and out of harm's way, he said.


"There were a huge amount of people running in different directions, and it was chaos for a lot of citizens, but true heroes were stepping up in this time of high stress," Roberts said. "E.R. nurses on the scene were providing medical care to those injured, a physician on the scene was helping provide care to the wounded."


Mall shopper Daniel Martinez told KATU that he had just sat down at a Jamba Juice inside the mall when he heard rapid gunfire. He turned and saw the masked gunman, dressed in all black, about 10 feet away from him.


"I just saw him (the gunman) and thought, 'I need to go somewhere,'" Martinez said. "It was so fast, and at that time, everyone was moving around."


Martinez said he ran to the nearest clothing store. As he ran, he motioned for another woman to follow; several others ran to the store as well, hiding in a fitting room. They stayed there for an hour and a half until SWAT teams told them it was safe to leave the mall.






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Washington’s peculiar ways confound visitors


Our peculiar habits can sometimes confound out-of-town guests.




CIA headquarters in Langley, Va.
(Saul Loeb - AFP/Getty Images)
Take, for example, U.S. District Court Judge Frederick Scullin Jr., normally of the Northern District of New York, but spending a little time here as a visiting judge.


He was presiding last week over a case involving a former CIA deep cover operative who alleges that unknown agency personnel bad-mouthed him to a defense contractor, costing him a job.


Marcia Sowles, a Justice Department lawyer for the CIA, argued that the agency never said anything publicly about the man, known as Peter B in court pleadings.



Scullin asked Peter B’s lawyer, Mark S. Zaid, to lay out the material facts the plaintiff believes are at issue so the judge could decide if limited discovery is warranted. He gave Zaid a week.


No problem preparing the filing in a week, Zaid said, but he couldn’t submit it to the court. He would first have to give it to the CIA for review to see if it contained classified information.


But there is no need to include any classified information, Scullin said.


Agreed, said Zaid, but the agency still has to get it first. Sowles and CIA lawyer Anthony Moses concurred: Everything must be reviewed in Langley.


Scullin seemed a tad irritated by this seemingly redundant requirement. Impatient to move along a case that has been stalled for years, Scullin asked Moses how long the review might take.


The CIA lawyer couldn’t predict.


Scullin, an Army infantry commander in Vietnam and Bush I appointee, ordered him to get it done in a week.


“If there’s an issue,” he said, “have your boss call me.”

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Malaysian customs seize record 24 tonnes of ivory






KUALA LUMPUR: Malaysian customs have seized 24 tonnes of unprocessed elephant tusks worth almost US$20 million, the largest haul in the country to date, officials said Tuesday.

Some 1,500 tusks hidden in two containers were discovered by customs officials at the country's main port of Klang, in the western state of Selangor.

The tusks had been hidden within pieces of timber inside the containers, which had originated from the west African nation of Togo.

State customs director Azis Yaacub said in a statement that the cargo had been transferred from one ship to another in Spain and was believed to be headed to China.

"The two containers were found to be filled with sawn timber. Inside the wood there were secret compartments that were filled with elephant tusks," he said.

The haul is worth 60 million ringgit, which amounts to US$19.6 million. Officials said that the seizure on December 7 was the fourth in the past year and was larger than the other three combined.

Wildlife trade-monitoring network TRAFFIC has described Malaysia as a major hub for illicit wildlife products.

International trade in elephant ivory was banned in 1990 with rare exceptions, such as auctions of tusks from elephants that have died naturally, or that have been seized from poachers in Namibia, Botswana and South Africa.

However, the ivory trade has grown globally since 2004, largely due to demand in China, where it is used in traditional medicine.

According to the World Wildlife Fund, African elephant populations may have been as high as five million in the first part of the 20th century, but their numbers could now be as low as 470,000.

- AFP/ir



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Kargil hero's father moves United Nations Human Rights Council for justice

BANGALORE: The father of an Indian army officer who was killed in action has moved to the United Nations Human Rights Council (UNHRC) against the torture and murder of his son, Capt Suarabh Kalia, and five soldiers of the Jat regiment during the Kargil conflict in 1999.

The petition has been jointly sent by the Flag of Honour Foundation and Dr NK Kalia, father of the captain.

Capt Kalia was the first officer to detect intrusion into Indian side of the Line of Control by the Pakistan army. He was later allegedly captured by Pakistani forces and tortured for over three weeks.

The petitioners urged the UNHRC to ensure that a full and independent investigation is conducted into the issue immediately and the ends of justice is met. They also asked the UN body to take appropriate steps to urge the Government of Pakistan to conduct an enquiry into the matter and ascertain those responsible for the torture and death of the captain.

The petition identifies the torturers as "unknown members of the Pakistan army, reportedly belonging to either the Elite Special Services Group or the Northern Light Infantry".

Capt Kalia's "post-mortem report and the death certificate indicate burns inflicted by cigarettes, eardrums pierced by hot rods, broken bones and teeth. Removal of eyes before puncturing then and chopped limbs and private organs", the petition said.

Talking to TOI over telephone from Palampur Himachal Pradesh, Dr Kalia confirmed that the petition had been filed. "I have very happy to see many people coming forward to support our family in this fight for justice for Saurab," he said.

A group of lawyers from Bangalore, including a senior lawyer associated with the UN, had been preparing the case to be submitted to the UNHRC. The activists said the apathy of the government in taking up the issue had forced them to do it themselves.

"Our idea is to let the families know that the sacrifice made by their sons will not forgotten and fight for justice will continue," said Rajiv Chandrashekar, MP and founder of the Flag of Honour Foundation.

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U.K. Dash for Shale Gas a Test for Global Fracking

Thomas K. Grose in London


The starting gun has sounded for the United Kingdom's "dash for gas," as the media here have dubbed it.

As early as this week, a moratorium on shale gas production is expected to be lifted. And plans to streamline and speed the regulatory process through a new Office for Unconventional Gas and Oil were unveiled last week in the annual autumn budget statement by the chancellor of the exchequer, George Osborne.

In the U.K., where all underground mineral rights concerning fossil fuels belong to the crown, hydraulic fracturing, or fracking, could unlock a new stream of government revenue as well as fuel. But it also means that there is no natural constituency of fracking supporters as there is in the United States, birthplace of the technology. In the U.S., concerns over land and water impact have held back fracking in some places, like New York, but production has advanced rapidly in shale basins from Texas to Pennsylvania, with support of private landowners who earn royalties from leasing to gas companies. (Related: "Natural Gas Stirs Hope and Fear in Pennsylvania")

A taste of the fight ahead in the U.K. came ahead of Osborne's speech last weekend, when several hundred protesters gathered outside of Parliament with a mock 23-foot (7-meter) drilling rig. In a letter they delivered to Prime Minister David Cameron, they called fracking "an unpredictable, unregulatable process" that was potentially toxic to the environment.

Giving shale gas a green light "would be a costly mistake," said Andy Atkins, executive director of the U.K.'s Friends of the Earth, in a statement. "People up and down the U.K. will be rightly alarmed about being guinea pigs in Osborne's fracking experiment. It's unnecessary, unwanted and unsafe."

The government has countered that natural gas-fired power plants would produce half the carbon dioxide emissions of the coal plants that still provide about 30 percent of the U.K.'s electricity. London Mayor Boris Johnson, viewed as a potential future prime minister, weighed in Monday with a blistering cry for Britain to "get fracking" to boost cleaner, cheaper energy and jobs. "In their mad denunciations of fracking, the Greens and the eco-warriors betray the mindset of people who cannot bear a piece of unadulterated good news," he wrote in the Daily Telegraph. (Related Quiz: "What You Don't Know About Natural Gas")

Energy Secretary Edward Davey, who is expected this week to lift the U.K.'s year-and-a-half-old moratorium on shale gas exploration, said gas "will ensure we can keep the lights on as increasing amounts of wind and nuclear come online through the 2020s."

A Big Role for Gas

If the fracking plan advances, it will not be the first "dash for gas" in the U.K. In the 1980s, while Prime Minister Margaret Thatcher battled with mining unions, she undercut their clout by moving the nation toward generating a greater share of its electricity from natural gas and less from coal. So natural gas already is the largest electricity fuel in Britain, providing 40 percent of electricity. (Related Interactive: "World Electricity Mix")

The United Kingdom gets about 10 percent of its electricity from renewable energy, and has plans to expand its role. But Davey has stressed the usefulness of gas-fired plants long-term as a flexible backup source to the intermittent electricity generated from wind and solar power. Johnson, on the other hand, offered an acerbic critique of renewables, including the "satanic white mills" he said were popping up on Britain's landscape. "Wave power, solar power, biomass—their collective oomph wouldn't pull the skin off a rice pudding," he wrote.

As recently as 2000, Great Britain was self-sufficient in natural gas because of conventional gas production in the North Sea. But that source is quickly drying up. North Sea production peaked in 2000 at 1,260 terawatt-hours (TWH); last year it totaled just 526 TWh.

Because of the North Sea, the U.K. is still one of the world's top 20 producers of gas, accounting for 1.5 percent of total global production. But Britain has been a net importer of gas since 2004. Last year, gas imports—mainly from Norway, Belgium, and the Netherlands—accounted for more than 40 percent of domestic demand.

The government hopes to revive domestic natural gas production with the technology that has transformed the energy picture in the United States—horizontal drilling into deep underground shale, and high-pressure injection of water, sand, and chemicals to create fissures in the rock to release the gas. (Related Interactive: "Breaking Fuel From the Rock")

A Tougher Road

But for a number of reasons, the political landscape is far different in the United Kingdom. Britain made a foray into shale gas early last year, with a will drilled near Blackpool in northwest England. The operator, Cuadrilla, said that that area alone could contain 200 trillion cubic feet of gas, which is more than the known reserves of Iraq. But the project was halted after drilling, by the company's own admission, caused two small earthquakes. (Related: "Tracing Links Between Fracking and Earthquakes" and "Report Links Energy Activities To Higher Quake Risk") The April 2011 incident triggered the moratorium that government now appears to be ready to lift. Cuadrilla has argued that modifications to its procedures would mitigate the seismic risk, including lower injection rates and lesser fluid and sand volumes. The company said it will abandon the U.K. unless the moratorium is soon lifted.

A few days ahead of Osborne's speech, the Independent newspaper reported that maps created for Britain's Department of Energy and Climate Change (DECC) showed that 32,000 square miles, or 64 percent of the U.K. countryside, could hold shale gas reserves and thus be open for exploration. But a DECC spokeswoman said "things are not quite what it [the Independent story] suggests." Theoretically, she said, those gas deposits do exist, but "it is too soon to predict the scale of exploration here." She said many other issues, ranging from local planning permission to environmental impact, would mean that some tracts would be off limits, no matter how much reserve they held. DECC has commissioned the British Geological Survey to map the extent of Britain's reserves.

Professor Paul Stevens, a fellow of the Royal Institute of International Affairs, said the U.K. is clearly interested in trying to replicate America's shale gas revolution. "That's an important part of the story," he said, but trying to use the American playbook won't be easy. "It's a totally different ballgame." In addition to the fact that mineral rights belong to the crown, large expanses of private land that are commonplace in America don't exist in England. Just as important, there is no oil- and gas-service industry in place in Britain to quickly begin shale gas operations here. "We don't have the infrastructure set up," said Richard Davies, director of the Durham Energy Institute at Durham University, adding that it would take years to build it.

Shale gas production would also likely ignite bigger and louder protests in the U.K. and Europe. "It's much more of a big deal in Europe," Stevens said. "There are more green [nongovernmental organizations] opposed to it, and a lot more local opposition."

In any case, the U.K. government plans to move ahead. Osborne said he'll soon begin consultations on possible tax breaks for the shale gas industry. He also announced that Britain would build up to 30 new natural gas-fired power plants with 26 gigawatts (GW) of capacity. The new gas plants would largely replace decommissioned coal and nuclear power plants, though they would ultimately add 5GW of additional power to the U.K. grid. The coalition government's plan, however, leaves open the possibility of increasing the amount of gas-generated electricity to 37GW, or around half of total U.K. demand.

The U.S. Energy Information Administration (EIA) estimates that Europe may have as much as 600 trillion cubic feet of shale gas that could be recovered. But Stevens said no European country is ready to emulate the United States in producing massive amounts of unconventional gas. They all lack the necessary service industry, he said, and geological differences will require different technologies. And governments aren't funding the research and development needed to develop them.

Globally, the track record for efforts to produce shale gas is mixed:

  • In France, the EIA's estimate is that shale gas reserves total 5 trillion cubic meters, or enough to fuel the country for 90 years. But in September, President Francois Hollande pledged to continue a ban on fracking imposed last year by his predecessor, Nicolas Sarkozy.
  • Poland was also thought to have rich shale gas resources, but initial explorations have determined that original estimates of the country's reserves were overstated by 80 percent to 90 percent. After drilling two exploratory wells there, Exxon Mobil stopped operations. But because of its dependence on Russian gas, Poland is still keen to begin shale gas production.
  • South Africa removed a ban on fracking earlier this year. Developers are eyeing large shale gas reserves believed to underlie the semidesert Karoo between Johannesburg and Cape Town.
  • Canada's Quebec Province has had a moratorium on shale gas exploration and production, but a U.S. drilling company last month filed a notice of intent to sue to overturn the ban as a violation of the North American Free Trade Agreement.
  • Germany's Environment Ministry has backed a call to ban fracking near drinking water reservoirs.
  • China drilled its initial shale gas wells this year; by 2020, the nation's goal is for shale gas to provide 6 percent of its massive energy needs. The U.S. government's preliminary assessment is that China has the world's largest "technically recoverable" shale resources, about 50 percent larger than stores in the United States. (Related: "China Drills Into Shale Gas, Targeting Huge Reserves")

This story is part of a special series that explores energy issues. For more, visit The Great Energy Challenge.


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Closing Tax Loopholes Not Enough to Avert 'Cliff'?













Closing "corporate tax loopholes" sure sounds good to the average, non-corporate American -- so good, in fact, that politicians talk about it all the time.


House Speaker John Boehner's fiscal-cliff proposal purports to raise $1.6 trillion in revenue by "clos[ing] special-interest loopholes and deductions while lowering rates."


The White House, meanwhile, has complained that Boehner hasn't offered specific loopholes to cut.


On the other side of the aisle, House Democrats have repeatedly offered up "closing overseas tax loopholes" as a means to pay for spending bills -- a plan Republicans routinely reject. In the last two and a half years, President Obama has often been heard griping about writeoffs for corporate jets.


For both Republicans and Democrats, "corporate tax loopholes" are an old saw. But, like most things in politics, raising revenue from "loopholes" gets a bit stickier when the specifics are hashed out.


A misconception about tax "loopholes," some experts say, is that they're loopholes -- gaps in the tax law that corporations have exploited against the law's intent.






Carolyn Kaster/AP Photo; Pablo Martinez Monsivais/AP Photo















Fiscal Cliff Battle: President Obama vs. Speaker John Boehner Watch Video





"Most of these proposals were not 'loopholes,' these were incentives," said Eric Toder, co-director of the left-leaning Tax Policy Center.


For example, take the research-and-development tax credit. During the campaign, both Obama and Mitt Romney suggested making it permanent.


"One wouldn't call the research credit a loophole," Toder said.


Cashing in by closing the biggest "loopholes" could be a politically fraught endeavor. To generate meaningful revenue, House Republicans would have to sign off on measures that raised it from taxing the overseas profits of multinational corporations, from ending immediate writeoffs of equipment purchases, or from ending a credit for domestic manufacturing.


When the Joint Committee on Taxation scored some of these provisions, as part of a tax-reform bill pushed by Democratic Sen. Ron Wyden and then-GOP-senator Judd Gregg, it found the government could save significantly:


Savings Over 10 Years: 2011-2021


Taxing Overseas Profits of Multinational Corps: $582.7 billion. In other words, the "overseas tax loophole" Democrats are fond of trashing. While most countries with large economies tax only profits made at home, the U.S. code taxes all income everywhere. To offset the different, U.S. multinational corporations receive credits to prevent double taxing. They also can defer paying any tax on foreign income, until they transfer the money back to the United States.


Taxing that profit could generate significant revenue. But this could be controversial, and large corporations would fight it. A senior aide to one business lobbying group said ending foreign-income deferral would amount to double-taxing U.S. companies and put them at a disadvantage to foreign competitors; one supporter of ending deferral suggested U.S. companies have been able to hide profits overseas, avoiding taxes altogether.






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Morsi gives Egypt army police powers before referendum






CAIRO: President Mohamed Morsi has ordered Egypt's army to take on police powers from Monday -- including the right to arrest civilians -- in the run-up to a divisive constitutional referendum that has triggered mass street protests.

The decree, published in the government gazette, takes effect on the eve of mass rival protests on the referendum and follows street clashes that have left seven people dead and hundreds injured.

It orders the military to fully cooperate with police "to preserve security and protect vital state institutions for a temporary period, up to the announce of the results from the referendum," according to a copy obtained by AFP.

The military, which ruled Egypt between the ouster of former president Hosni Mubarak in February 2011 and the election of Morsi in June this year, has sought to remain neutral in the political crisis.

It has warned it "will not allow" the situation to deteriorate, and urged both sides to dialogue.

Army tanks and troops have since Thursday deployed around Morsi's presidential palace but they have not confronted thousands of protesters who have gathered there every night.

The opposition, made up of secular, liberal, leftwing and Christian groups, has said it will escalate its protests to scupper the referendum.

It views the draft constitution, largely drafted by Morsi's Islamist allies, as undermining human rights, the rights of women, religious minorities, and curtailing the independence of the judiciary.

Morsi, though, has defiantly pushed on with the new charter, seeing it as necessary to secure democratic reform in the wake of Mubarak's 30-year autocratic rule.

Late Sunday, the main opposition group, the National Salvation Front, called for huge protests in Cairo to reject the December 15 referendum.

It dismissed a key concession Morsi made rescinding another decree giving himself near-absolute powers as too late, saying he had already used it to railroad through the draft constitution.

"We do not recognise the draft constitution because it does not represent the Egyptian people," National Salvation Front spokesman Sameh Ashour told a news conference.

Going ahead with the referendum "in this explosive situation with the threat of the Brothers' militias amounts to the regime abandoning its responsibilities," he said.

In recent days, the protesters have hardened their slogans, going beyond criticism of the decree and the referendum to demand Morsi's ouster.

The Muslim Brotherhood, from which Morsi hails, shot back that it and allied Islamist movements would counter with their own big rallies in the capital in support of the referendum.

"We are calling for a demonstration Tuesday, under the slogan 'Yes to legitimacy'," the Brotherhood's spokesman, Mahmud Ghozlan, told AFP.

Morsi's camp argues it is up to the people to accept or reject the draft constitution.

If the charter is rejected, Morsi has promised to have a new one drawn up by 100 officials chosen directly by the public rather than appointed by the Islamist-dominated parliament.

But analysts said still-strong public support for Morsi, and the Brotherhood's proven ability to mobilise the grassroots level, would likely help the draft constitution be adopted.

"The Muslim Brotherhood believes that it has majority support so it can win the constitutional referendum," said Eric Trager, analyst at the Washington Institute for Near East Policy.

If that happens, he warned, it would "set up the country for prolonged instability".

- AFP/ir



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Cauvery water dispute: SC not to interfere with Cauvery monitoring committee award

NEW DELHI: The Supreme Court today made it clear that it will not interfere with the Cauvery monitoring committee's order directing Karnataka to provide Tamil Nadu with 12 TMC of Cauvery water during December despite both warring states expressing dissatisfaction over the award.

A bench of justices D K Jain and Madan B Lokur turned down the plea of Tamil Nadu which contended that the report is factually wrong and the court should interfere in the matter to direct Karnataka to release more water.

"They (members of CMC) are experts and we should not comment on it. If you are not happy with the report then do what you want to do for getting remedy," the bench said.

"It seems that both sides are not satisfied by the direction issued by the CMC. We leave it for the parties to work out in accordance with law," the bench said in its order.

The bench posted the matter for further hearing on January 4 after noting that the order of the Committee is for the month of December.

The CMC, which met on the direction of the apex court, had on December 7 asked asked Karnataka to provide Tamil Nadu with 12 TMC of Cauvery water during December.

Kerala and Pudducherry are the other two member states of CMC which is headed by Union secretary, water resources.

"It would seem equitable if Karnataka should manage water in such a way that Tamil Nadu receives 12 TMC feet during the month of December, 2012," the committee had said in its interim award.

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Plants Grow Fine Without Gravity


When researchers sent plants to the International Space Station in 2010, the flora wasn't meant to be decorative. Instead, the seeds of these small, white flowers—called Arabidopsis thaliana—were the subject of an experiment to study how plant roots developed in a weightless environment.

Gravity is an important influence on root growth, but the scientists found that their space plants didn't need it to flourish. The research team from the University of Florida in Gainesville thinks this ability is related to a plant's inherent ability to orient itself as it grows. Seeds germinated on the International Space Station sprouted roots that behaved like they would on Earth—growing away from the seed to seek nutrients and water in exactly the same pattern observed with gravity. (Related: "Beyond Gravity.")

Since the flowers were orbiting some 220 miles (350 kilometers) above the Earth at the time, the NASA-funded experiment suggests that plants still retain an earthy instinct when they don't have gravity as a guide.

"The role of gravity in plant growth and development in terrestrial environments is well understood," said plant geneticist and study co-author Anna-Lisa Paul, with the University of Florida in Gainesville. "What is less well understood is how plants respond when you remove gravity." (See a video about plant growth.)

The new study revealed that "features of plant growth we thought were a result of gravity acting on plant cells and organs do not actually require gravity," she added.

Paul and her collaborator Robert Ferl, a plant biologist at the University of Florida in Gainesville, monitored their plants from the Kennedy Space Center in Florida using images sent from the space station every six hours.

Root Growth

Grown on a nutrient-rich gel in clear petri plates, the space flowers showed familiar root growth patterns such as "skewing," where roots slant progressively as they branch out.

"When we saw the first pictures come back from orbit and saw that we had most of the skewing phenomenon we were quite surprised," Paul said.

Researchers have always thought that skewing was the result of gravity's effects on how the root tip interacts with the surfaces it encounters as it grows, she added. But Paul and Ferl suspect that in the absence of gravity, other cues take over that enable the plant to direct its roots away from the seed and light-seeking shoot. Those cues could include moisture, nutrients, and light avoidance.

"Bottom line is that although plants 'know' that they are in a novel environment, they ultimately do just fine," Paul said.

The finding further boosts the prospect of cultivating food plants in space and, eventually, on other planets.

"There's really no impediment to growing plants in microgravity, such as on a long-term mission to Mars, or in reduced-gravity environments such as in specialized greenhouses on Mars or the moon," Paul said. (Related: "Alien Trees Would Bloom Black on Worlds With Double Stars.")

The study findings appear in the latest issue of the journal BMC Plant Biology.


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