Higgs may spell doom, unless supersymmetry saves us

Lisa Grossman, physical sciences reporter

(Image: CERN)

Is the Higgs boson a herald of the apocalypse? That's the suggestion behind a theory, developed more than 30 years ago, that is back in the headlines this week. According to physicists, the mass of the Higgs-like particle announced last summer supports the notion that our universe is teetering on the edge of stability, like a pencil balanced on its point.

"It may be that the universe we live in is inherently unstable," Joseph Lykken, of the Fermi National Accelerator Laboratory in Batavia, Illinois, said on Monday at a meeting of the American Association for the Advancement of Science. "At some point, billions of years from now, it's all going to be wiped out."

Physicists have been wringing their hands about this scenario since 1982, when theorists Michael Turner and Frank Wilczek published a paper about it in Nature, NBC News points out. The pair showed that the vacuum of space can be in different energy states, and it will be most stable at its lowest energy. Trouble arises if we're not there yet, and we're inhabiting a temporarily stable state that should ultimately collapse.

"The universe wants to be in a different state, so eventually to realize that, a little bubble of what you might think of as an alternate universe will appear somewhere, and it will spread out and destroy us," Lykken said at AAAS.

Enter the Higgs boson, the particle form of the field that gives mass to several fundamental particles. The Higgs field permeates the vacuum of space, which means the mass of the boson and the stability of the vacuum are closely intertwined. Theory predicted that if the Higgs boson is heavier than about 129 gigaelectronvolts (GeV), the universe should be on safe footing.

But in July 2012 physicists at CERN, near Geneva, Switzerland announced that a particle closely matching the Higgs had been found by experiments in the Large Hadron Collider (LHC). The much celebrated particle has a mass of about 126 GeV - light enough to raise fears of instability.

There is still hope for the universe as we know it. Some theorists pointed out that the relationship between the Higgs mass and the vacuum of space depends on the mass of a particle called the top quark. If the top quark's mass is different than we think it is, stability might reign.

There are also anomalies with the Higgs measurement, like the fact that it decays into photons more often than predicted. That hints we may yet find particles from the theory of supersymmetry, which says each ordinary particle has heavier "superpartners". If the Higgs has such a relative, it might save us from destruction. But some of these predicted particles, particularly the superpartners of the top quark, can push the universe back into instability.

The worries may remain unconfirmed for a while. The LHC is shutting down for a two-year break so engineers can prepare the machine to shoot higher-energy particle beams, which are needed to probe for superpartners.

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Sony bills coming PS4 console as future of gaming

NEW YORK: Sony unveiled a new-generation PlayStation 4 (PS4) system on Wednesday and laid out its vision for the "future of gaming" in a world rich with mobile gadgets and play streamed from the Internet cloud.

At a press event in New York, computer entertainment unit chief Andrew House said PS4 "represents a significant shift from thinking of PlayStation as a box or console to thinking of the PlayStation 4 as a leading place for play."

PS4 was designed to get to know players, ideally to the point of being able to predict which games people will buy and have them pre-loaded and ready to go.

It also allows live streaming of gameplay in real-time, letting friends virtually peer over one another's shoulders and even letting game makers to act as "directors" guiding players along.

Sony has also given a "green light" to building "the most powerful network for gaming in the world", according to David Perry, chief of Gaikai cloud gaming company purchased last year by Sony.

Gaikai specialises in letting people play video games streamed from the Internet "cloud" instead of buying titles on disks popped into consoles or computers.

"By combining PlayStation 4, PlayStation Network and social platforms, our vision is to create the first social network with meaning dedicated to games," Perry said during the event.

A button on the PS4 controller will let players instantly stream in-game action to friends in real time, and even allow someone to transfer control to more capable allies when stuck, according to Perry.

He expressed a vision of letting people access and play video games old or new on the Internet using PS4, smartphones, tablets or PS Vita handheld devices.

"We are exploring opportunity enabled by cloud technology with a long-term vision of making PlayStation technology available on any device," Perry said.

"This would fundamentally change the concept of game longevity, making any game new or old available to get up and running on any device, anywhere."

Sony needs to adapt to changing lifestyles while not alienating video game lovers devoted to its hardware.

Low-cost or free games on smartphones or tablet computers are increasing the pressure on video game companies to deliver experiences worth players' time and money.

With the press event still in progress, Sony had yet to indicate availability or pricing for the PS4. New-generation consoles are typically priced in the $400 to $500 range, and blockbuster game titles hit the market at $60 each.

-AFP/gn

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Curiosity's drill delivers first sample in major milestone

This image from NASA's Curiosity rover shows the first sample of powdered rock extracted by the rover's drill. The image was taken after the sample was transferred from the drill to the rover's scoop. In planned subsequent steps, the sample will be sieved, and portions of it delivered to the Chemistry and Mineralogy instrument and the Sample Analysis at Mars instrument.

(Credit:
NASA/JPL-Caltech/MSSS )

The Curiosity rover's powerful impact drill has successfully collected its first subsurface sample, about a tablespoon of powdered rock that will be fed into the spacecraft's on-board laboratory instruments for detailed chemical analysis, project officials said Wednesday.

The drill is the last major system on the rover to be tested since landing in Gale Crater last August and the successful collection of subsurface material marks a major milestone in Curiosity's quest to find signs of past or present habitability.

"Curiosity's first drill hole at the John Klein site is a historic moment for the MSL (Mars Science Laboratory) mission," said Louise Jandura, chief engineer of Curiosity's sample system. "This is the first time any robot, fixed or mobile, has drilled into a rock to collect a sample on Mars.

"In fact, this is the first time any rover has drilled into a rock to collect a sample anywhere but on Earth. In the five-decade history of the Space Age, this is indeed a rare event."

The drill, mounted on the end of Curiosity's robot arm, was used to bore 2.5 inches into a rock for the first time on February 8. Photographs beamed back to Earth on Wednesday showed a sample of pulverized light gray rock collected from the interior of the target bedrock resting in a scoop on the rover.

The scoop is part of Curiosity's Collection and Handling for In-Situ Martian Rock Analysis, or CHIMRA. Over the next few days, the sample will be vibrated over a sieve to screen out any particles larger than 150 microns across, or six-thousandths of an inch.

A portion of the fine-grained result will be delivered to the Chemistry and Mineralogy, or CheMin, suite of instruments for a detailed chemical analysis. Another set of instruments, known as the Sample Analysis at Mars, or SAM, package is designed to look for signs of organic compounds like those necessary for life as it is known on Earth.

"Seeing the powder from the drill in the scoop allows us to verify for the first time that the drill successfully acquired sample as it was boring down into the rock," said Scott McCloskey, rover planner and drill systems engineer. "We estimate that we collected about a tablespoon of powder, which meets our expectations and is a great result. We're all very happy to get this confirmation and relieved that the drilling was a complete success."

So far, Curiosity is chalking up a near flawless record with no technical problems of any significance.

At the center of this image from NASA's Curiosity rover is the hole in a rock called "John Klein" where the rover conducted its first sample drilling on Mars. The drilling took place on February 8, 2013, or Sol 182, Curiosity's 182nd Martian day of operations. Several preparatory activities with the drill preceded this operation, including a test that produced the shallower hole on the right two days earlier, but the deeper hole resulted from the first use of the drill for rock sample collection.

(Credit:
NASA/JPL-Caltech/MSSS )

But engineers have decided to change the way they operate the rover's sample acquisition system in the wake of problems with welds on a test unit sieve at the Jet Propulsion Laboratory.

The problem showed up only after extensive operation, and troubleshooters concluded the unit could successfully operate for a full year longer than Curiosity's planned two-year mission. A second test unit showed no signs of trouble and the sieve aboard Curiosity is working normally.

But engineers opted to take a conservative approach, deciding to operate Curiosity's sieve hardware only when absolutely necessary.

"Given this kind of reason to be cautious, based on what our test program is telling us that hey, there might be an issue here, it may or may not apply to flight, we're taking the conservative tack," said Daniel Limonadi, lead systems engineer for Curiosity's surface sampling and science system.

"We're reducing the amount of wear and tear we're putting on the hardware. We've shortened our sieving time...to help minimize whatever might be going on and extend its life."

Joel Hurowitz, sampling system scientist for Curiosity, said the science team is eager to finally get the opportunity to examine rock samples that have not been subjected to surface weathering.

"This drilling operation we just completed allows us to get beneath the surface and analyze for the first time rock samples that have not been exposed to the effects of the Martian surface environment and truly understand the chemistry and mineralogy of a Martian rock," he said.

"The science team is just superexcited to find out what CheMin and SAM will have to say about the mineralogy and chemistry of this material and what it means for the geologic history and habitability of Gale Crater."

Jandura said the ability to drill is a major step forward in the Mars exploration program.

"It allows us to go beyond the surface layer of the rock, unlocking a kind of time capsule of evidence about the state of Mars going back 3 or 4 billion years," she said. "Because the drill's on a rover, the rock choices are plentiful."

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NASA's Mars Rover Makes Successful First Drill

For the first time ever, people have drilled into a rock on Mars, collecting the powdered remains from the hole for analysis.

Images sent back from NASA's Mars rover Curiosity on Wednesday confirmed that the precious sample is being held by the rover's scoop, and will soon be delivered to two miniature chemical labs to undergo an unprecedented analysis. (Related: "Mars Rover Curiosity Completes First Full Drill.")

To the delight of the scientists, the rock powder has come up gray and not the ubiquitous red of the dust that covers the planet. The gray rock, they believe, holds a lot of potential to glean information about conditions on an early Mars. (See more Mars pictures.)

"We're drilling into rock that's a time capsule, rocks that are potentially ancient," said sampling-system scientist Joel Hurowitz during a teleconference from NASA's Jet Propulsion Laboratory in California.

A Place to Drill

The site features flat bedrock, often segmented into squares, with soil between the sections and many round gray nodules and white mineral veins.

Hurowitz said that the team did not attempt to drill into the minerals or the gray balls, but the nodules are so common that they likely hit some as they drilled down 2.5 inches (6.3 centimeters).

In keeping with the hypothesis that the area was once under water, Hurowitz said the sample "has the potential of telling us about multiple interactions of water and rock."

The drill, located at the end of a seven-foot (two-meter) arm, requires precision maneuvering in its placement and movement, and so its successful initial use was an exciting and welcome relief. The rover has been on Mars since August, and it took six months to find the right spot for that first drill. (Watch video of the Mars rover Curiosity.)

The flat drilling area is in the lower section of Yellowknife Bay, which Curiosity has been exploring for more than a month. What was previously identified by Curiosity scientists as the dry bed of a once-flowing river or stream appears to fan out into the Yellowknife area.

The bedrock of the site—named after deceased Curiosity deputy project manager John Klein—is believed to be siltstone or mudstone. Scientists said the veins of white minerals are probably calcium sulfate or gypsum, but the grey nodules remain something of a mystery.

Triumph

To the team that designed and operates the drill, the results were a triumph, as great as the much-heralded landing of Curiosity on the red planet. With more than a hundred maneuvers in its repertoire, the drill is unique in its capabilities and complexities. (Watch video of Curiosity's "Seven Minutes of Terror.")

Sample system chief engineer Louise Jandura, who has worked on the drill for eight years, said the Curosity team had made eight different drills before settling on the one now on the rover. The team tested each drill by boring 1,200 holes on 20 types of rock on Earth.

She called the successful drilling "historic" because it gives scientists unprecedented access to material that has not been exposed to the intense weathering and radiation processes that affect the Martian surface.

Mini-laboratories

The gray powder will be routed to the two most sophisticated instruments on Curiosity—the Sample Analysis at Mars (SAM) and Chemistry and Mineralogy (CheMin).

SAM, the largest and most complex instrument onboard, operates with two ovens that can heat the sample up to 1,800°F (982°C), turning the elements and compounds in the rock into gases that can then be identified. SAM can also determine whether any carbon-based organic material is present.

Organics are the chemical building blocks of life on Earth. They are known to regularly land on Mars via meteorites and finer material that rains down on all planets.

But researchers suspect the intense radiation on the Martian surface destroys any organics on the surface. Scientists hope that organics within Martian rocks are protected from that radiation.

CheMin shoots an X-ray beam at its sample and can analyze the mineral content of the rock. Minerals provide a durable record of environmental conditions over the eons, including information about possible ingredients and energy sources for life.

Both SAM and CheMin received samples of sandy soil scooped from the nearby Rocknest outcrop in October. SAM identified organic material, but scientists are still trying to determine whether any of it is Martian or the byproduct of organics inadvertently brought to Mars by the rover. (See "Mars Rover Detects Simple Organic Compounds.")

In the next few days, CheMin will be the first to receive samples of the powdered rock, and then SAM. Given the complexity of the analysis, and the track record seen with other samples, it will likely be weeks before results are announced.

The process of drilling and collecting the results was delayed by several glitches that required study and work-arounds. One involved drill software and the other involved a test-bed problem with a sieve that is part of the process of delivering samples to the instruments.

Lead systems engineer Daniel Limonadi said that while there was no indication the sieve on Mars was malfunctioning, they had become more conservative in its use because of the test bed results. (Related: "A 2020 Rover Return to Mars?")

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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Armstrong Snubs Offer From Anti-Doping Officials

Lance Armstrong has turned down what may be his last chance at reducing his lifetime sporting ban.

Armstrong has already admitted in an interview with Oprah Winfrey to a career fueled by doping and deceit. But to get a break from the U.S. Anti-Doping Agency, all he had to do was tell his story to those who police sports doping. The deadline was today, and Armstrong now says he won't do it.

"For several reasons, Lance will not participate in USADA's efforts to selectively conduct American prosecutions that only demonize selected individuals while failing to address the 95 percent of the sport over which USADA has no jurisdiction," said Tim Herman, Armstrong's longtime lawyer. "Lance is willing to cooperate fully and has been very clear: He will be the first man through the door, and once inside will answer every question, at an international tribunal formed to comprehensively address pro cycling."

But the "international tribunal" Armstrong is anxious to cooperate with has one major problem: It doesn't exist.

The UCI, cycling's governing body, has talked about forming a "truth and reconciliation" commission, but the World Anti-Doping Agency has resisted, citing serious concerns about the UCI and its leadership.

READ MORE: Armstrong Admits to Doping

Livestrong, Elizabeth Kreutz/AP Photo

Lance Armstrong Under Criminal Investigation Watch Video

Lance Armstrong-Winfrey Interview: How Honest Was He? Watch Video

READ MORE: Lance Armstrong May Have Lied to Winfrey: Investigators

WATCH: Armstrong's Many Denials Caught on Tape

U.S. Anti-Doping Agency officials seemed stunned by Armstrong's decision simply to walk away.

"Over the last few weeks, he [Armstrong] has led us to believe that he wanted to come in and assist USADA, but was worried of potential criminal and civil liability if he did so," said Travis Tygart, CEO of the U.S. Anti-Doping Agency. "Today, we learned from the media that Mr. Armstrong is choosing not to come in and be truthful and that he will not take the opportunity to work toward righting his wrongs in sport."

Armstrong's ongoing saga plays out amid a backdrop of serious legal problems.

Sources believe one reason Armstrong wants to testify to an international tribunal, rather than USADA, is because perjury charges don't apply if Armstrong lies to a foreign agency, they told ABC News.

While Armstrong has admitted doping, he has not given up any details, including the people and methods required to pull off one of the greatest scandals in all of sport.

Armstrong is facing several multimillion-dollar lawsuits right now, but his biggest problems may be on the horizon. As ABC News first reported, a high-level source said a criminal investigation is ongoing. And the Department of Justice also reportedly is considering joining a whistleblower lawsuit claiming the U.S. Postal Service was defrauded out of millions of dollars paid to sponsor Armstrong's cycling team.

READ MORE: 10 Scandalous Public Confessions

PHOTOS: Olympic Doping Scandals: Past and Present

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Today on New Scientist: 19 February 2013

Doctors would tax sugary drinks to combat obesity

Hiking the price of fizzy drinks would cut consumption and so help fight obesity, urges the British Academy of Medical Royal Colleges

Space station's dark matter hunter coy about findings

Researchers on the Alpha Magnetic Spectrometer, which sits above the International Space Station, have collected their first results - but won't reveal them for two weeks

Huge telescopes could spy alien oxygen

Hunting for oxygen in the atmospheres of distant exoplanets is a tough job, but a new wave of giant telescopes should be up to the task

Evolution's detectives: Closing in on missing links

Technology is taking the guesswork out of finding evolution's turning points, from the first fish with legs to our own recent forebears, says Jeff Hecht

Moody Mercury shows its hidden colours

False-colour pictures let us see the chemical and physical landscape of the normally beige planet closest to the sun

LHC shuts down to prepare for peak energy in 2015

Over the next two years, engineers will be giving the Large Hadron Collider the makeover it needs to reach its maximum design energy

Insert real news events into your mobile game

From meteor airbursts to footballing fracas, mobile games could soon be brimming with news events that lend them more currency

3D-printing pen turns doodles into sculptures

The 3Doodle, which launched on Kickstarter today, lets users draw 3D structures in the air which solidify almost instantly

We need to rethink how we name exoplanets

Fed up with dull names for exoplanets, Alan Stern and his company Uwingu have asked the public for help. Will it be so long 2M 0746+20b, hello Obama?

A shocking cure: Plug in for the ultimate recharge

An electrical cure for ageing attracted the ire of the medical establishment. But could the jazz-age inventor have stumbled upon a genuine therapy?

Biofuel rush is wiping out unique American grasslands

Planting more crops to meet the biofuel demand is destroying grasslands and pastures in the central US, threatening wildlife

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Japan logs worst January trade deficit of $17.4 bn

TOKYO: Japan logged its worst ever trade deficit for January due mainly to heavier fuel import bills, official data showed Wednesday.

Finance ministry figures showed the economy suffered a shortfall of 1.63 trillion yen, the worst deficit on record for the month. Comparable data began in 1979.

Economists had expected an average shortfall of 1.3 trillion yen.

Exports increased 6.4 percent to 4.8 trillion yen, posting the first rise in eight months on higher shipments of automobile parts and other items.

But imports rose 7.3 percent to 6.43 trillion yen as imports of petroleum products, natural liquefied gas and crude oil soared.

Japan's fuel imports have risen since the 2011 earthquake and tsunami disaster sparked the world's worst nuclear accident in a generation, sending most atomic power plants offline.

- AFP/sf

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This sheet turns your windows into mirrors

One feature on the beleaguered Boeing 787 Dreamliner is its electrochromic dimming system that lets passengers make windows on the aircraft more or less opaque at the touch of a button.

Japan's National Institute of Advanced Industrial Science and Technology (AIST) says that while these smart windows can take about 30 seconds to change, it has a new stick-on window film that can go from reflective to see-through in only 5 seconds.

The switchable mirror device can change states when a low voltage is applied.

The tech can be used to produce low-cost, large-scale smart windows, according to AIST. In contrast to some smart windows, the sheet reflects light instead of absorbing it, preventing the glass from heating up.

Since it reduces incoming heat, the sheet could help keep buildings and vehicles cool in summer, reducing the need for air conditioning as well as electricity.

It takes 10 minutes for the layer to return to a mirror state, but AIST has shown that electrolyzing moisture in the air will fill the sheet with hydrogen, and revert the sheet to a reflective state in 30 seconds.

The sheet was recently shown off at the 11th International Nanotechnology Exhibition & Conference in Tokyo; check out a demo in the vid below.

(Via Akihabara News)

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Florida Python Hunt Captures 68 Invasive Snakes

It's a wrap—the 2013 Python Challenge has nabbed 68 invasive Burmese pythons in Florida, organizers say. And experts are surprised so many of the elusive giants were caught.

Nearly 1,600 people from 38 states—most of them inexperienced hunters—registered for the chance to track down one of the animals, many of which descend from snakes that either escaped or were dumped into the wild.

Since being introduced, these Asian behemoths have flourished in Florida's swamps while also squeezing out local populations of the state's native mammals, especially in the Everglades. (See Everglades pictures.)

To highlight the python problem, the Florida Fish and Wildlife Conservation Commission and its partners launched the 2013 Python Challenge, which encouraged registered participants to catch as many pythons as they could between January 12 and February 10 in state wildlife-management areas within the Everglades.

The commission gave cash prizes to those who harvested the most and longest pythons.

Frank Mazzotti, a wildlife ecologist at the University of Florida and scientific leader for the challenge, said before the hunt that he would consider a harvest of 70 animals a success—and 68 is close enough to say the event met its goals.

It's unknown just how many Burmese pythons live in Florida, but catching 68 snakes is an "exceptional" number, added Kenneth Krysko, senior herpetologist at the Florida Museum of Natural History in Gainesville.

Snakes in the Grass

Finding 68 snakes is impressive, experts say, since it's so hard to find pythons. For one, it's been unusually warm lately in Florida, which means the reptiles—which normally sun themselves to regulate their body temperature—are staying in the brush, making them harder to detect, Krysko said.

On top of that, Burmese pythons are notoriously hard to locate, experts say.

The animals are so well camouflaged that people can stand right next to one and not notice it. "It's rare that you get to see them stretched out—most of the time they're blending in," said Cheryl Millett, a biologist at the Nature Conservancy, a Python Challenge partner.

What's more, the reptiles are ambush hunters, which means they spend much of their time lying in wait in dense vegetation, not moving, she said.

That's why Millett gave the hunters some tips, such as looking along the water's edge, where the snakes like to hang out, and also simply listening for "something big moving through the vegetation."

Even so, catching 68 snakes is "actually is a little more than I expected," said Millett.

No Walk in the Park

Ruben Ramirez, founder of the company Florida Python Hunters, won two prizes in the competition: First place for the most snakes captured—18—and second place for the largest python, which he said was close to 11 feet (3.4 meters) long. The biggest Burmese python caught in Florida, nabbed in 2012, measured 17.7 feet (5.4 meters).

"They're there, but they're not as easy to find as people think," said Ramirez. "You're not going to be stumbling over pythons in Miami." (Related blog post: "What It's Like to Be a Florida Python Hunter.")

All participants, some of whom had never hunted a python before, were trained to identify the difference between a Burmese python and Florida's native snakes, said Millett. No native snakes were accidentally killed, she said.

Hunters were also told to kill the snakes by either putting a bolt or a bullet through their heads, or decapitating them-all humane methods that result "in immediate loss of consciousness and destruction of the brain," according to the Python Challenge website.

Ramirez added that some of the first-time or amateur hunters had different expectations. "I think they were expecting to walk down a canal and see a 10-foot [3-meter], 15-foot [4.5-meter] Burmese python. They thought it'd be a walk in the park."

Stopping the Spread

Completely removing these snakes from the wild isn't easy, and some scientists see the Python Challenge as helping to achieve part of that goal. (Read an opposing view on the Python Challenge: "Opinion: Florida's Great Snake Hunt Is a Cheap Stunt.")

"You're talking about 68 more animals removed from the population that shouldn't be there—that's 68 more mouths that aren't being fed," said the Florida museum's Krysko. (Read about giant Burmese python meals that went bust.)

"I support any kind of event or program that not only informs the general public about introduced species, but also gets the public involved in removing these nonnative animals that don't belong there."

The Nature Conservancy's Millett said the challenge had two positive outcomes: boosting knowledge for both science and the public.

People who didn't want to hunt or touch the snakes could still help, she said, by reporting sightings of exotic species to 888-IVE-GOT-1, through free IveGot1 apps, or www.ivegot1.org.

Millett runs a public-private Nature Conservancy partnership called Python Patrol that the Florida wildlife commission will take on in the fall. The program focuses not only on eradicating invasive pythons but on preventing the snake from moving to ecologically sensitive areas, such as Key West.

Necropsies on the captured snakes will reveal what pythons are eating, and location data from the hunters will help scientists figure out where the snakes are living—valuable data for researchers working to stop their spread.

"This is the most [number of] pythons that have been caught in this short of a period of time in such an extensive area," said the University of Florida's Mazzotti.

"It's an unprecedented sample, and we're going to get a lot of information out of that."

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Report Fingers Chinese Military Unit in US Hacks

A Virginia-based cyber security firm has released a new report alleging a specific Chinese military unit is likely behind one of the largest cyber espionage and attack campaigns aimed at American infrastructure and corporations.

In the report, released today by Mandiant, China's Unit 61398 is blamed for stealing "hundreds of terabytes of data from at least 141 organizations" since 2006, including 115 targets in the U.S. Twenty different industrial sectors were targeted in the attacks, Mandiant said, from energy and aerospace to transportation and financial institutions.

Mandiant believes it has tracked Unit 61398 to a 12-story office building in Shanghai that could employ hundreds of workers.

"Once [Unit 61398] has established access [to a target network], they periodically revisit the victim's network over several months or years and steal broad categories of intellectual property, including technology blueprints, proprietary manufacturing processes, test results, business plans, pricing documents, partnership agreements, and emails and contact lists from victim organizations' leadership," the report says.

The New York Times, which first reported on the Mandiant paper Monday, said digital forensic evidence presented by Mandiant pointing to the 12-story Shangai building as the likely source of the attacks has been confirmed by American intelligence officials. Mandiant was the firm that The Times said helped them investigate and eventually repel cyber attacks on their own systems in China last month.

Peter Parks/AFP/Getty Images

The Chinese government has repeatedly denied involvement in cyber intrusions and Chinese Foreign Ministry spokesperson Hong Lei said today that the claims in the Mandiant report were unsupported, according to a report by The Associated Press.

"To make groundless accusations based on some rough material is neither responsible nor professional," he reportedly said.

Mandiant's report was released a week after President Obama said in his State of the Union address that America must "face the rapidly growing threat from cyber attack."

"We know hackers steal people's identities and infiltrate private e-mail. We know foreign countries and companies swipe our corporate secrets. Now our enemies are also seeking the ability to sabotage our power grid, our financial institutions, and our air traffic control systems. We cannot look back years from now and wonder why we did nothing in the face of real threats to our security and our economy," he said.

Though Obama did not reference China or any country specifically, U.S. officials have previously accused the Asian nation of undertaking a widespread cyber espionage campaign.

Referring to alleged Chinese hacking in October 2011, House Intelligence Committee Chairman Rep. Mike Rogers (R-Mich.) said in an open committee meeting that he did not believe "that there is a precedent in history for such a massive and sustained intelligence effort by a government agency to blatantly steal commercial data and intellectual property."

Rogers said that cyber intrusions into American and other Western corporations by hackers working on behalf of Beijing -- allegedly including attacks on corporate giants like Google and Lockheed Martin -- amounted to "brazen and widespread theft."

"The Chinese have proven very, very good at hacking their way into very large American companies that spend a lot of money trying to protect themselves," cyber security expert and ABC News consultant Richard Clarke said in an interview last week.

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