Antarctic Drilling Team Nabs 1st Samples of Buried Lake

As a sterilized video camera dropped through a borehole in the ice, U.S. scientists camped at Lake Whillans in Antarctica became the first to see the bottom of a lake trapped underneath the glacial ice for thousands of years.

On Monday, the team pulled mud and water from the lake floor, 2,625 feet (800 meters) below the surface of the ice, marking the Whillans Ice Stream Subglacial Access Research Drilling (WISSARD) mission a success, the researchers said on the project’s blog.

“This effort marks the first successful retrieval of clean whole samples from an Antarctic subglacial lake,” the researchers said on the WISSARD site.

Drilling operations at Lake Whillans began on Jan. 21, after tractors pulled equipment, generators and 500,000 pounds (227,000 kilograms) of fuel to the drilling site, and the science team flew in from McMurdo Station on the Antarctic coast. [See Photos of Subglacial Lake Whillans Drilling Site]

Water and sediment samples returned to the surface will be examined for microbes and other signs of life; clues to past climate; and interactions between under-ice water and the overlying ice sheet. Some of the samples will be tested on-site, in a lab set up in a shipping container, and some will be sent back to the United States for further study.

The first traces of mud brought up from the lake floor yielded diatom fossils, microscopic marine life eroded from rocks in West Antarctica, Discover reported.

The U.S. effort was one of three attempts to drill into one of Antarctica’s buried lakes during the southern summer. The others are at Lake Ellsworth and Lake Vostok. Lake Whillans was closest to the surface of the three lakes by more than a mile (2 kilometers). Also, unlike the deeper pair, which may have been isolated for millions of years, Lake Whillans regularly fills and drains with water from subglacial streams.

A British-led team called off their attempt to drill into buried Lake Ellsworth on Christmas Eve due to technical problems with their hot-water drill. On Jan. 14, Russian scientists said they retrieved water samples from Lake Vostok, buried beneath more than 2 miles (3 km) of Antarctic ice. The Russian search for extreme life in Vostok has so far returned only drilling mud contaminants, but results from this year’s work have not yet been released.

Reach Becky Oskin at [email protected]. Follow her on Twitter @beckyoskin. Follow OurAmazingPlanet on Twitter @OAPlanet. We’re also on Facebook and Google+.

Copyright 2013 OurAmazingPlanet, a TechMediaNetwork company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
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Why haven't we learned from fires?

STORY HIGHLIGHTS

• Pyrotechnics, overcrowding, poor exits have contributed to tragic fires in recent years


• You would think the world would have learned from past incidents, John Barylick says


• Concertgoers have to be their own fire marshals, he says

Editor's note: John Barylick, author of "Killer Show," a book on the 2003 Station nightclub fire in Rhode Island, is an attorney who represented victims in wrongful death and personal injury cases arising from the fire.

(CNN) -- Sunday morning we awoke to breaking news of another tragic nightclub fire, this time in Brazil. At last report the death toll exceeded 230.

This tragedy is not without precedent. Next month will mark the 10th anniversary of a similar nightclub fire in Rhode Island. At this sad time, it's appropriate to reflect on what we've learned from club fires -- and what we haven't.

Rhode Island's Station nightclub fire of 2003, in which 100 concertgoers lost their lives, began when fireworks set off by Great White, an 80s heavy metal band, ignited flammable packing foam on the club's walls.

Deadly blazes: Nightclub tragedies in recent history

John Barylick

Panicked patrons stampeded toward the club's main exit, and a fatal pileup ensued. Contributing to the tragedy were illegal use of pyrotechnics, overcrowding and a wall covering that would have failed even the most rudimentary flammability tests.

Video images of the Station fire were broadcast worldwide: A concert begins; the crowd's mood changes from merry, to curious, to concerned, to horrified -- in less than a minute. You'd think the world would have learned from it. You would be wrong.

The following year, the Republica Cromanon nightclub in Argentina went up in flames, killing 194 people. The club was made to hold about 1,000 people, but it was estimated that more than 3,000 fans were packed inside the night of the fire, which began when fans began lighting flares that caught the roof on fire.

Echoes of the past: Rhode Island victims 'can't help but watch'

Then, in January 2009, at least 64 New Year's revelers lost their lives in a nightclub in Bangkok, Thailand, after fire ignited its ceiling. Many were crushed in a rush to get out of the club. In December of that same year, a fire in a Russian nightclub, ignited by pyrotechnics, killed 156 people. Overcrowding, poor exits, and indoor fireworks all played roles in these tragedies; yet no one bothered to learn from mistakes of the past.

While responsibility for concert disasters unquestionably lies with venue operators, performers and promoters, ultimately, we, as patrons of clubs and concerts, can enhance our own safety by taking a few simple steps. The National Fire Protection Association urges concertgoers to:

• Be observant. Is the concert venue rundown or well-maintained? Does the staff look well-trained?

• As you proceed to your seat, observe how long the process takes. Could you reverse it in a hurry? Do you pass through pinch points? Is furniture in the way?

• Once seated, take note of the nearest exit. (In an emergency, most people try to exit by the door they entered, which is usually not the closest, and is always overcrowded.) Then, share the location of that nearest exit with your entire party. Agree that at the first sign of trouble, you will all proceed to it without delay.

• Once the show begins, remain vigilant. If you think there's a problem, LEAVE IMMEDIATELY. Do not stay to "get your money's worth" despite concerns about safety. Do not remain to locate that jacket or bag you placed somewhere. No concert is worth your life. Better to read about an incident the next day than be counted as one of its statistics.

Read more: How to protect yourself in a crowd

To be sure, all fire codes must be vigorously enforced, and club and concert hall operators must be held to the highest standards. A first step is banning indoor pyrotechnics in all but the largest, stadium-type venues.

But, ultimately, we are our own best "fire marshals" when it comes to avoiding, and escaping, dangerous situations. We can still enjoy shows. But it is up to us to look out for our own safety.

In coming days, Rhode Islanders will follow the unfolding news from Brazil with a sense of queasy deja vu -- the rising body counts, the victim identification process, the grieving families, and the assigning (and dodging) of blame. If only they had learned from our tragedy.

The opinions expressed in this commentary are solely those of John Barylick.

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2 killed in West Rogers Park in possible carbon monoxide leak

The first sign of trouble came around 3 a.m. Sunday when Shabbir Ahmed's sister-in-law woke up feeling ill.

"It started from there," Ahmed said. "She was feeling dizzy."

Four hours later his 77-year-old mother, Rasheeda Akhter, was so ill she could not get out of bed. "They took her to Swedish Covenant Hospital but before she got there, she died," Ahmed said.

An hour later, relatives tried to wake his 18-year-old niece Zanib Ahmed. "She couldn't wake up," Ahmed said.  She was rushed by ambulance to the same hospital where "they tried their best to save her life but she did not come back."

Ahmed's brother then gathered five children ranging in age from 5 to 12 and took them to a hospital for observation. "We figured out something was wrong," said Ahmed, 49. "They were OK, they were eating and playing around."

The family has been told the deaths were caused by carbon monoxide fumes, and investigators were looking at whether the fumes got into the apartments through ductwork from the boiler.

Fire Department spokesman Larry Langford said the building in the 2500 of West North Shore Avenue had one working carbon monoxide detector and it was located in a room near the boiler in the basement. City code requires detectors on every floor where there are bedrooms, Langford said.

When fire officials first responded to the address, they checked the carbon monoxide levels and found no indication of a leak in the building, according to Fire Department spokeswoman Meg Ahlheim said.

When paramedics were called back to the scene, they checked again and still found no evidence of a leak, Ahlheim said. Officials found a positive reading for a low level of carbon monoxide near the boiler, Ahlheim said. The detector had not gone off, according to Langford.

But officials still suspect that carbon monoxide fumes are to blame, Langford said, though the investigation continues. Autopsies for Akhter and her granddaughter are scheduled for today.

Ahmed said no work was done recently on the boiler. "It was the same boiler we had, it was working perfectly, then all of a sudden like a car, cars break down," he said.

The four-flat building is owned by his family and was purchased by his father more than 20 years ago. He said relatives live in each of the units.  "We owned the whole building, nobody else was living there."

Ahmed said his parents came to the United States from Pakistan. His father died about two years ago from a heart condition. He said his mother had three sons and a daughter and 11 grandchildren.

He called his mother a "beautiful person." He said the grandchildren would call her "Dadyji," which is Urdu for grandmother. He said most of the grandchildren lived in the building and she was a constant presence in their lives.

"All of the kids loved her and played with her all of the time, they are going to miss her very badly," Ahmed said.

He said his niece was a senior at St. Scholastica Academy High School and was scheduled to graduate this year. She was considering going to Northwestern University, where she wanted to go into premed.

"She had planned to go to medical school, she always talked about being a surgeon," Ahmed said.

She was the oldest of three children, and leaves behind a sister and brother, Ahmed said. "They were very close."

Another relatives said the family "is going through a tough time, they were very good people."

asege@tribune.com

chicagobreaking@tribune.com

Twitter: @AdamSege

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Violence flares in Egypt after emergency law imposed

CAIRO (Reuters) - A man was shot dead on Monday in a fifth day of violence that has killed 50 Egyptians and prompted the Islamist president to declare a state of emergency in an attempt to end a wave of unrest sweeping the biggest Arab nation.

Emergency rule announced by President Mohamed Mursi on Sunday covers the cities of Port Said, Ismailia and Suez. The army has already been deployed in two of those cities and ministers agreed a measure to let soldiers arrest civilians.

A cabinet source told Reuters any trials would be in civilian courts, but the step is likely to anger protesters who accuse Mursi of using high-handed tactics of the kind they fought against to oust his military predecessor Hosni Mubarak.

Egypt's politics have become deeply polarized since those heady days two years ago, when protesters were making the running in the Arab Spring revolutions that sent shockwaves through the region and Islamists and liberals lined up together.

Although Islamists have won parliamentary and presidential elections, the disparate opposition has since united against Mursi. Late last year he moved to expand his powers and pushed a constitution with a perceived Islamist bias through a referendum. The moves were punctuated by street violence.

Mursi's national dialogue meeting on Monday to help end the crisis was spurned by his main opponents.

They say Mursi hijacked the revolution, listens only to his Islamist allies and broke a promise to be a president for all Egyptians. Islamists say their rivals want to overthrow by undemocratic means Egypt's first freely elected leader.

Thousands of anti-Mursi protesters were out on the streets again in Cairo and elsewhere on Monday, the second anniversary of one of the bloodiest days in the revolution which erupted on January 25, 2011 and ended Mubarak's iron rule 18 days later.

"The people want to bring down the regime," they chanted Alexandria. "Leave means go, and don't say no!" they shouted.

VOLLEYS OF TEARGAS

Propelled to the presidency in a June election by the Muslim Brotherhood, Mursi has lurched through a series of political crises and violent demonstrations, complicating his task of shoring up the economy and of preparing for a parliamentary election to cement the new democracy in a few months.

Instability in Egypt has raised concerns in Western capitals, where officials worry about the direction of a key regional player that has a peace deal with Israel.

In Cairo on Monday, police fired volleys of teargas at stone-throwing protesters near Tahrir Square, cauldron of the anti-Mubarak uprising. A car was torched on a nearby bridge.

A 46-year-old bystander was killed by a gunshot early on Monday, a security source said. It was not clear who fired.

"We want to bring down the regime and end the state that is run by the Muslim Brotherhood," said Ibrahim Eissa, a 26-year-old cook, protecting his face from teargas wafting towards him.

The political unrest has been exacerbated by street violence linked to death penalties imposed on soccer supporters convicted of involvement in stadium rioting in Port Said a year ago.

As part of emergency measures, a daily curfew will be imposed on the three canal cities from 9 p.m. (1900 GMT) to 6 a.m. (0400 GMT). Residents have said they will defy it.

The president announced the measures on television on Sunday: "The protection of the nation is the responsibility of everyone. We will confront any threat to its security with force and firmness within the remit of the law," Mursi said, angering many of his opponents when he wagged his finger at the camera.

He offered condolences to families of victims. But his invitation to Islamist allies and their opponents to hold a national dialogue was spurned by the main opposition National Salvation Front coalition. Those who accepted were mostly Mursi's supporters or sympathizers.

SENDING A MESSAGE

The Front rejected the offer as "cosmetic and not substantive" and set conditions for any future meeting that have not been met in the past, such as forming a government of national unity. They also demanded that Mursi declare himself responsible for the bloodshed.

"We will send a message to the Egyptian people and the president of the republic about what we think are the essentials for dialogue. If he agrees to them, we are ready for dialogue," opposition politician Mohamed ElBaradei told a news conference.

The opposition Front has distanced itself from the latest flare-ups but said Mursi should have acted far sooner to impose security measures that would have ended the violence.

"Of course we feel the president is missing the real problem on the ground, which is his own policies," Front spokesman Khaled Dawoud said after Mursi made his declaration.

Other activists said Mursi's measures to try to impose control on the turbulent streets could backfire.

"Martial law, state of emergency and army arrests of civilians are not a solution to the crisis," said Ahmed Maher of the April 6 movement that helped galvanize the 2011 uprising. "All this will do is further provoke the youth. The solution has to be a political one that addresses the roots of the problem."

Rights activists said Mursi's declaration was a backward step for Egypt, which was under emergency law for Mubarak's entire 30-year rule. His police used the sweeping arrest provisions to muzzle dissent and round up opponents, including members of the Brotherhood and even Mursi himself.

Heba Morayef of Human Rights Watch in Cairo said the police, still hated by many Egyptians for their heavy-handed tactics under Mubarak, would once again have the right to arrest people "purely because they look suspicious", undermining efforts to create a more efficient and respected police force.

"It is a classic knee-jerk reaction to think the emergency law will help bring security," she said. "It gives so much discretion to the Ministry of Interior that it ends up causing more abuse, which in turn causes more anger."

(Additional reporting by Yasmine Saleh in Cairo, Yusri Mohamed in Ismailia and Abdelrahman Youssef in Alexandria; Editing by Giles Elgood, Peter Millership and Alastair Macdonald)

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Wall Street Week Ahead: Bears sleep as stocks near record highs

NEW YORK (Reuters) - U.S. stocks have been on a tear in January, moving major indexes within striking distance of all-time highs. The bearish case is a difficult one to make right now.

Earnings have exceeded expectations, the housing and labor markets have strengthened, lawmakers in Washington no longer seem to be the roadblock that they were for most of 2012, and money has returned to stock funds again.

The Standard & Poor's 500 Index <.spx> is up 5.4 percent this year and above 1,500 - climbing to the spot where Wall Street strategists expected it to be by mid-year. The Dow Jones industrial average <.dji> is just 2 percent away from all-time highs reached in October 2007. The Dow ended on Friday at 13,895.98, its highest close since October 31, 2007.

The S&P 500 has risen for four straight weeks and eight consecutive sessions, the longest streak of days since 2004. On Friday, the benchmark S&P 500 ended at 1,502.96 - its first close above 1,500 in more than five years.

"Once we break above a resistance level at 1,510, we dramatically increase the probability that we break the highs of 2007," said Walter Zimmermann, a technical analyst at United-ICAP, in Jersey City, New Jersey. "That may be the start of a rise that could take equities near 1,800 within the next few years."

The most recent Reuters poll of Wall Street strategists estimated the benchmark index would rise to 1,550 by year's end, a target that is 3.1 percent away from current levels. That would put the S&P 500 a stone's throw from the index's all-time intraday high of 1,576.09 reached on October 11, 2007.

The new year has brought a sharp increase in flows into U.S. equity mutual funds, and that has helped stocks rack up four straight weeks of gains, with strength in big- and small-caps alike.

That's not to say there are no concerns. Economic growth has been steady, but not as strong as many had hoped. The household unemployment rate remains high at 7.8 percent. And more than 75 percent of the stocks in the S&P 500 are above their 26-week highs, suggesting the buying has come too far, too fast.

MUTUAL FUND INVESTORS COME BACK

All 10 S&P 500 industry sectors are higher in 2013, in part because of new money flowing into equity funds. Investors in U.S.-based funds committed $3.66 billion to stock mutual funds in the latest week, the third straight week of big gains for the funds, data from Thomson Reuters' Lipper service showed on Thursday.

Energy shares <.5sp10> led the way with a gain of 6.6 percent, followed by industrials <.5sp20>, up 6.3 percent. Telecom <.5sp50>, a defensive play that underperforms in periods of growth, is the weakest sector - up 0.1 percent for the year.

More than 350 stocks hit new highs on Friday alone on the New York Stock Exchange. The Dow Jones Transportation Average <.djt> recently climbed to an all-time high, with stocks in this sector and other economic bellwethers posting strong gains almost daily.

"If you peel back the onion a little bit, you start to look at companies like Precision Castparts , Honeywell , 3M Co and Illinois Tool Works - these are big broad-based industrial companies in the United States and they are all hitting new highs, and doing very well. That is the real story," said Mike Binger, a portfolio manager at Gradient Investments, in Shoreview, Minnesota.

The gains have run across asset sizes as well. The S&P small-cap index <.spcy> has jumped 6.7 percent and the S&P mid-cap index <.mid> has shot up 7.5 percent so far this year.

Exchange-traded funds have seen year-to-date inflows of $15.6 billion, with fairly even flows across the small-, mid- and large-cap categories, according to Nicholas Colas, chief market strategist at the ConvergEx Group, in New York.

"Investors aren't really differentiating among asset sizes. They just want broad equity exposure," Colas said.

The market has shown resilience to weak news. Last week, the S&P 500 held steady on Thursday despite a 12 percent slide in shares of Apple after the iPhone and iPad maker's results. The giant tech company is heavily weighted in both the S&P 500 and Nasdaq 100 <.ndx>. In the past, Apple's drop has suffocated stocks' broader gains.

In the last few days, the ratio of stocks hitting new highs versus those hitting new lows on a daily basis has started to diminish - a sign that the rally is narrowing to fewer names - and could be running out of gas.

Investors have also cited sentiment surveys that indicate high levels of bullishness among newsletter writers, a contrarian indicator, and momentum indicators are starting to suggest the rally has perhaps come too far.

THE FED AND JOBS ON THE AGENDA

The Federal Reserve's policymakers will meet this week for the first time this year. The Federal Open Market Committee's meeting will start on Tuesday and end on Wednesday. Most economists polled in late January expect the Fed's ultra-loose monetary policy to stay in place well into next year despite the modest growth forecast for the U.S. economy.

The market's resilience could be tested this week with Friday's release of the January non-farm payrolls report. About 155,000 jobs are forecast to have been added in the month, a Reuters poll showed. The U.S. unemployment rate is expected to hold steady at 7.8 percent.

"Staying over 1,500 sends up a flag of profit taking," Jerry Harris, president of asset management at Sterne Agee, in Birmingham, Alabama, said in reference to the S&P 500. "Since recent jobless claims have made us optimistic on payrolls, if that doesn't come through, it will be a real risk to the rally."

A number of marquee names will report earnings this week, including bellwether companies such as Caterpillar Inc , Amazon.com Inc , Ford Motor Co and Pfizer Inc .

On a historic basis, valuations remain relatively low. The S&P 500's price-to-earnings ratio sits at 15.66, just a tad above the historic level of 15.

Worries about the U.S. stock market's recent strength do not mean the market is in a bubble. Investors clearly don't feel that way at the moment.

"We're seeing more interest in equities overall, and a lot of flows from bonds into stocks," said Paul Zemsky, who helps oversee $445 billion as the New York-based head of asset allocation at ING Investment Management. "We've been increasing our exposure to risky assets."

For the past week, the Dow climbed 1.8 percent, the S&P 500 rose 1.1 percent and the Nasdaq advanced 0.5 percent.

(Wall Street Week Ahead runs every Sunday. Questions or comments on this one can be sent to ryan.vlastelica(at)thomsonreuters.com)

(Reporting by Ryan Vlastelica; Additional reporting by Chuck Mikolajczak; Editing by Jan Paschal)

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Fog delays 3rd round at Torrey Pines

SAN DIEGO (AP) — Tiger Woods is going to have to wait to pursue another win at Torrey Pines.

A thick fog shrouded the course along the Pacific bluffs on Saturday and essentially wiped out the entire day at the Farmers Insurance Open. Woods, a six-time winner of this tournament, had a two-shot lead and never even bothered coming to the golf course. Three players completed one hole — and that was after a three-hour delay.

Players were to resume the third round Sunday morning and go as long as daylight allowed, and then finish Monday.

And that's a best-case scenario.

In a bizarre twist, tour officials were hopeful of rain and a little wind Sunday morning, two elements that most golfers dread. That's what is needed, however, to keep the fog away from Torrey Pines and allow the tournament to resume.

"When Mother Nature doesn't want you to play, you can't play," said Mark Russell, the tour vice president of competition.

They did just about everything else.

Lucas Glover warmed up three times, at one point passed the time with a little trickery. He lined up two balls in the direction of the range, and hit them with a wedge so that one ball went straight in the air, and Jerry Kelly took a baseball swing with an inverted club and made contact.

Through four tournaments this year, the PGA Tour already had had its share of weather problems. This will be the second tournament that doesn't finish on the scheduled day. The Tournament of Champions at Kapalua didn't even start until Monday, the day it was supposed to end, because of 40 mph gusts. It had to be reduced to 54 holes and was completed on Tuesday.

Woods was at 11-under 133 and didn't need to come to the course with all the delays because he was in the last group with Billy Horschel and Casey Wittenberg. Horschel spent part of his day getting advice through text messages on how to play with Woods.

He'll get to see plenty of Woods over the next two days.

Russell said there would not be a 54-hole cut for 87 players — typically there is a cut when the field is more than 78 players on Saturday. Instead, they will take a short lunch break and go back out, racing time when fog allows. The groups will stay the same until the tournament is over.

"I think the coolest thing that can come from it is that I think it looks like we're going to be paired together for 36 holes," Horschel said. "So it's a pretty cool thing that's going to happen. It's just going to be a fun day tomorrow and Monday. So we'll see how it goes."

Horschel also is among 17 players who are entered in the qualifier Monday to get into the Phoenix Open, which starts next week. Russell said those players have been given the latest tee times for the qualifier — the latest is 1:36 p.m. MST — with hopes of getting there.

Saturday began with a 30-minute delay that soon stretched into three hours, and the sun broke through the clouds as Hunter Mahan, Robert Garrigus and John Mallinger teed off on the 10th hole at the South Course. Five minutes later, the horn sounded. Because it was for weather, they were able to finish the hole.

Mahan's caddie took a picture of the 11th tee, a 216-yard par 3, and the visibility was no more than 50 yards.

It never got any better.

"That little bit of sun we did get today was overpowered by just the saturation of the atmosphere, so we just couldn't overcome it today," said Stewart Williams, the tour's meteorologist.

Defending champion Brandt Snedeker, seven shots out of the lead, was among those who had the longest day. He was up at 5 a.m., arrived in darkness, warmed up in the fog and never hit a shot.

"It's tough when you prepare one day, and then it's one of those days where preparation is going to be kind of thrown off," he said. "But we have these days from time to time. We kind of know what to do to keep your mind fresh and ready to go. You realize it's a different week, and could be a Monday finish now and be ready for that."

Woods won in 2005 at Torrey Pines when fog interrupted the tournament, though it was completed on Sunday. The last time this event was shortened to 54 holes because of weather was in 1998.

Russell said the Farmers Insurance Open will go 72 holes. He just couldn't promise when 84 players could get to the 37th hole of the tournament. Without rain, there was the chance of more fog Sunday morning.

"If we say we're not going to play because we might have fog in the morning, and we didn't have fog, we'd have tremendous problems," he said. "So we're going to schedule it, and hopefully, we won't have fog and we can play golf. That's all we can do. If Mother Nature doesn't cooperate, we don't have very much control over that. We're going to be out here, ready to play, and see what happens."

That's assuming they can see at all.

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Stunning Photo Captures Reflective Cloud in Orion Constellation

A telescope in South America has captured a spectacular new view of an intricate cloud of interstellar dust in the famed Orion constellation.

The new space cloud photo, taken by the Atacama Pathfinder Experiment (APEX) telescope in Chile, reveals what astronomers call the Orion Molecular Cloud Complex in unprecedented detail. It gives scientists a glimpse into the heart of the closest, most active region of massive star formation to our solar system, researchers said.

The molecular cloud is located about 1,500 light-years from Earth in the Orion constellation. The new APEX image includes a reflection nebula called NGC 1999, which is only part of the vast molecular cloud. The cloud is actually a separate entity from the more well-known Orion nebula, which is located nearby.

Reflection nebulas get their name because their dark dust clouds reflect the light of nearby stars. For NGC 1999, the light stems from the young star V380 Orionis, ESO officials said in an image desciption.

Near the center of new APEX image is a dark spot that stands out against the more colorful background, a feature that surprised some researchers studying the photo.

“Normally, a dark patch such as this would indicate a dense cloud of cosmic dust, obscuring the stars and nebula behind it,” officials with the European Southern Observatory, which oversees the APEX said in a statement. “However, in this image we can see that the patch remains strikingly dark, even when the APEX observations are included.”

Scientists suspect that the dark spot was created when a star sucked up all the material in that part of its stellar nursery, leaving an empty spot in its place.

The extremely sensitive telescope captured the photo by measuring long wavelengths of light that aren’t on the visible spectrum. Most telescopes aren’t able to observe light at these submillimeter wavelengths, and would only see dust and clouds obscuring the star formation in the background.

At 40 feet (12 meters) in diameter, APEX is the largest single dish telescope operating at these hard to detect wavelengths in the Southern Hemisphere. It is a prototype designed to test technology needed for a next-generation submillimeter telescope called the Atacama Large Millimeter/submillimeter Array, or ALMA.

The $ 1.3 billion ALMA observatory will ultimately be a network of 66 telescopes spread across 11 miles (18 kilometers) in Chile. ALMA has already completed its test cycle of experimentation, and will officially open in March.

Follow Miriam Kramer on Twitter @mirikramer or SPACE.com @Spacedotcom. We’re also on Facebook & Google+. 

Copyright 2013 SPACE.com, a TechMediaNetwork company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
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Women in infantry: Tough challenge?

Hospital Corpsman Shannon Crowley packs for a mission as Lance Cpl.. Kristi Baker sits on her bed in 2010 in Afghanistan.

STORY HIGHLIGHTS

• Maren Leed: Ban on women in combat has hurt operations, women's promotion


• Leed: Integrating women into the physically demanding infantry presents challenges


• Women are already in combat; she says, the "front line" and "rear line" no longer exist


• Leed: Research into women in infantry might show that some limits might be appropriate

Editor's note: Maren Leed is senior adviser, Harold Brown Chair in defense policy studies at the Center for Strategic and International Studies. From 2011 to 2012, she served as senior adviser to the chief of staff of the U.S. Army. Follow the Center for Strategic and International Studies on Twitter.

(CNN) -- In the coming years, lifting the ban on women in combat, announced Thursday by Defense Secretary Leon Panetta, might prove particularly challenging in the most iconic of military occupations -- the infantry, among the most physically demanding and tradition-bound branches of the Marines and the Army.

Determining the best path forward to integrate women into this elite group will require hard-nosed honesty, careful management and compelling leadership.

For the 65 years that women have enjoyed a permanent place in the United States military, they have been subject to restrictions. One rationale is the notion embedded in our culture that women should be shielded from great physical risks. Another is a recognition of the physical superiority of the average male over the average female. A third is the fear that unit cohesion, critical to military performance, would suffer with the introduction of women.

Maren Leed

These three concerns apply to varying degrees in the infantry. But the last 11 years of war have clearly demonstrated that warfare is no longer waged in a linear fashion, and that the concept of "front line" no longer applies.

Opinion: A more equal military? Bring back draft

Historically, logistics operations were conducted "in the rear," where risks were comparatively low. This has changed: In 2006 in Iraq, for example, one in every five truck convoys was attacked. Although infantry clearly remains one of the most dangerous military occupations, the proliferation of homemade bombs and other low-cost, lethal weaponry and tactics have heightened the risk of almost every occupation. War is more uniformly dangerous.

That said, physical differences between the sexes remains a thorny issue. Determining gender-neutral physical standards for an integrated infantry will be one of the most difficult tasks ahead.

Infantry soldiers and Marines are the primary forces for operations on foot. They not only travel long distances, but also frequently carry loads in excess of 50 pounds. Both the short- and long-term health effects of such demands can be significant.

Single mom fought alongside combat troops in Afghanistan

The Defense Department has consistently pursued solutions to lighten the load, from exoskeletons to unmanned vehicles that would serve as "pack mules," to the elusive quest for higher power, lower weight batteries.

The success of these efforts will benefit both men and women. But until that happens, research into the effects these physical demands have on women is necessary before determining the degree to which they can, and should, be part of the full range of infantry.

Whether men serving in the infantry will accept women as peers is another open question.

Those who oppose women in the infantry argue that they would change group dynamics, disrupt bonding and ultimately harm unit cohesion. In the past, these fears have been brought up regarding the participation of minorities and homosexuals, too. But data show these negative predictions don't come true. Instead, successful integration has happened with strong leadership, and, critically, a process that is broadly perceived to be fair.

Opinion: Women in combat a dangerous experiment

Even if the arguments underpinning the ban on women in combat have weakened, is there sufficient justification for change? The Joint Chiefs apparently believe so, as they have unanimously recommended the ban be lifted.

Each of the services already has been taking steps along these lines. This is in part driven by the evolution of the battlefield. When today's senior leaders were serving time in Iraq and Afghanistan, they realized that the restrictions on women sometimes also restricted their missions.

They implemented work-arounds and sought exceptions to policy. But they came home with firsthand experience of the mismatch between modern warfare and the policies limiting women's role. Women are in combat, and senior military leaders believe that future success demands they must remain available to be so, in even greater numbers.

From the institutional viewpoint, there are also concerns that the traditional limitations fail to make the best use of women in the service. Combat experience weighs heavily in promotion decisions, and restrictions have precluded women from gaining experiences equal to those of male counterparts.

Women are also excluded from many of the occupations disproportionately represented in senior leadership, and that automatically limits the number of women who can advance to the highest levels. At the same time, the pool of Americans eligible for military service is shrinking, and competition for high-quality recruits is intensifying. So it's imperative that the military fully leverage the talent of the men and women it has and that it seeks to attract.

By the numbers: Women in the U.S. military

The arguments in favor of lifting the ban on women in combat outweigh those against it. Despite Defense Secretary Leon Panetta's announcement on Thursday, the military services maintain the prerogative to preclude women from serving in certain positions or occupations.

Infantry, or at least some specialties within that branch, could well be a case in which restrictions are warranted. But military leaders have time to evaluate this proposition, and to set the conditions to make any change stick. The path ahead may not be smooth, but it is necessary.

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The opinions expressed in this commentary are solely those of Maren Leed.

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Nightclub fire kills at least 200 in Brazil

A fire swept through a crowded nightclub in southern Brazil early Sunday, killing at least 245 people and leaving at least 200 injured, police and firefighters said. (Jan. 27)

SANTA MARIA, Brazil (Reuters) - A fire in a nightclub killed at least 232 people in southern Brazil on Sunday when a band's pyrotechnics show set the building ablaze and fleeing partygoers stampeded toward blocked and overcrowded exits in the ensuing panic, officials said.

The blaze in the university town of Santa Maria was started by a band member or someone from its production team igniting a flare, which then set fire to the ceiling, said Luiza Sousa, a civil police official. The fire spread "in seconds," she said.

Local fire officials said at least one exit was locked and that bouncers, who at first thought those fleeing were trying to skip out on bar tabs, initially blocked patrons from leaving. The security staff relented only when they saw flames engulfing the ceiling.

The vast majority of the victims, most of them university students, died from asphyxiation, officials said. Others were crushed in the stampede.

"We ran into a barrier of the dead at the building's exit," Colonel Guido Pedroso de Melo, commander of the Santa Maria fire squad, said of the scene firefighters found on arrival. "We had to clear a path to get to the rest of those that were inside."

An estimated 500 people were in the Boate Kiss nightclub when the fire broke out at around 2:30 a.m., police said. Witnesses said the club, which has a 2,000-person capacity, was always busy on weekends but wasn't any more crowded than usual.

The death tally was lowered slightly, with police saying at midafternoon that 232 people had been killed, down from an initial figure of 245.

When the fire began, many revelers were unable to find their way out amid the chaos, confusing restroom doors for exits and finding resistance from bouncers when they did find an exit door.

"It all happened so fast," survivor Taynne Vendrusculo told GloboNews TV. "Both the panic and the fire spread rapidly, in seconds."

Once security guards realized the building was on fire, they tried in vain to control the blaze with a fire extinguisher, according to a televised interview with one of the guards, Rodrigo Moura. He said patrons were getting trampled as they rushed for the doors, describing it as "a horror film."

Television footage showed people sobbing outside the club before dawn, while shirtless firefighters used sledge hammers and axes to knock down an exterior wall to open up an exit.

SAFETY STANDARDS IN SPOTLIGHT

Rescue officials moved the bodies to a local gymnasium, where the deceased were segregated by gender. Male victims were easier to identify, they said, because most of them, unlike the women, whose purses were left scattered in the devastated nightclub, had identification on them.

One of the club's owners had already surrendered to police for questioning, GloboNews reported.

President Dilma Rousseff, who started her political career in the Rio Grande do Sul state where the fire happened, cut short a visit to Chile to return to visit the scene. Before leaving Chile, she broke out in tears as she pledged government help for the victims and their families.

"We are trying to mobilize all possible resources to help in the rescue efforts," Rousseff said. "All I can say at the moment is that my feelings are of deep sorrow."

The disaster recalls other incidents including a 2003 fire at a nightclub in West Warwick, Rhode Island, that killed 100, and a Buenos Aires nightclub blaze in 2004 that killed nearly 200. In both incidents, a band or members of the audience ignited fires that set the establishment ablaze.

Brazil's safety standards and emergency response capabilities are under particular scrutiny as it prepares to host the 2014 World Cup soccer tournament and the 2016 Olympics.

Santa Maria, with a population of more than 275,000, is about 186 miles west of the state capital of Porto Alegre.

Rio Grande do Sul state's health secretary, Ciro Simoni, said emergency medical supplies from all over the state were being sent to the scene.

(Additional reporting by Guillermo Parra-Bernal, Gustavo Bonato, Jeferson Ribeiro, Eduardo Simões and Brian Winter; Writing by Paulo Prada; Editing by Todd Benson, Kieran Murray and Eric Beech)

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Nightclub fire kills at least 232 in Brazil

SANTA MARIA, Brazil (Reuters) - A fire in a nightclub killed at least 232 people in southern Brazil on Sunday when a band's pyrotechnics show set the building ablaze and fleeing partygoers stampeded toward blocked and overcrowded exits in the ensuing panic, officials said.

The blaze in the university town of Santa Maria was started by a band member or someone from its production team igniting a flare, which then set fire to the ceiling, said Luiza Sousa, a civil police official. The fire spread "in seconds," she said.

Local fire officials said at least one exit was locked and that bouncers, who at first thought those fleeing were trying to skip out on bar tabs, initially blocked patrons from leaving. The security staff relented only when they saw flames engulfing the ceiling.

The vast majority of the victims, most of them university students, died from asphyxiation, officials said. Others were crushed in the stampede.

"We ran into a barrier of the dead at the building's exit," Colonel Guido Pedroso de Melo, commander of the Santa Maria fire squad, said of the scene firefighters found on arrival. "We had to clear a path to get to the rest of those that were inside."

An estimated 500 people were in the Boate Kiss nightclub when the fire broke out at around 2:30 a.m., police said. Witnesses said the club, which has a 2,000-person capacity, was always busy on weekends but wasn't any more crowded than usual.

The death tally was lowered slightly, with police saying at midafternoon that 232 people had been killed, down from an initial figure of 245.

When the fire began, many revelers were unable to find their way out amid the chaos, confusing restroom doors for exits and finding resistance from bouncers when they did find an exit door.

"It all happened so fast," survivor Taynne Vendrusculo told GloboNews TV. "Both the panic and the fire spread rapidly, in seconds."

Once security guards realized the building was on fire, they tried in vain to control the blaze with a fire extinguisher, according to a televised interview with one of the guards, Rodrigo Moura. He said patrons were getting trampled as they rushed for the doors, describing it as "a horror film."

Television footage showed people sobbing outside the club before dawn, while shirtless firefighters used sledge hammers and axes to knock down an exterior wall to open up an exit.

SAFETY STANDARDS IN SPOTLIGHT

Rescue officials moved the bodies to a local gymnasium, where the deceased were segregated by gender. Male victims were easier to identify, they said, because most of them, unlike the women, whose purses were left scattered in the devastated nightclub, had identification on them.

One of the club's owners had already surrendered to police for questioning, GloboNews reported.

President Dilma Rousseff, who started her political career in the Rio Grande do Sul state where the fire happened, cut short a visit to Chile to return to visit the scene. Before leaving Chile, she broke out in tears as she pledged government help for the victims and their families.

"We are trying to mobilize all possible resources to help in the rescue efforts," Rousseff said. "All I can say at the moment is that my feelings are of deep sorrow."

The disaster recalls other incidents including a 2003 fire at a nightclub in West Warwick, Rhode Island, that killed 100, and a Buenos Aires nightclub blaze in 2004 that killed nearly 200. In both incidents, a band or members of the audience ignited fires that set the establishment ablaze.

Brazil's safety standards and emergency response capabilities are under particular scrutiny as it prepares to host the 2014 World Cup soccer tournament and the 2016 Olympics.

Santa Maria, with a population of more than 275,000, is about 186 miles west of the state capital of Porto Alegre.

Rio Grande do Sul state's health secretary, Ciro Simoni, said emergency medical supplies from all over the state were being sent to the scene.

(Additional reporting by Guillermo Parra-Bernal, Gustavo Bonato, Jeferson Ribeiro, Eduardo Simões and Brian Winter; Writing by Paulo Prada; Editing by Todd Benson, Kieran Murray and Eric Beech)

Read More..