In-depth 2012: The best long reads of the year

Read more: "2013 Smart Guide: 10 ideas that will shape the year"

Dig deeper, look closer and think harder – these are the goals of New Scientist's in-depth articles. Each one is perfect for saving in your favourite read-it-later app and curling up in front of a glowing tablet for a good long read.

These are our editors' picks of our best features of the year, and all are prime examples of the amazing breadth of big ideas that were ripe for the tackling in 2012. When you have finished digesting these readable meals, visit our in-depth articles archive if you're hungry for more.

Richard Webb: "You might not have heard of the algorithm that runs the world." I certainly hadn't, or that its mathematical foundations are starting to look a little wobbly. An eye-opening examination of how seemingly abstruse mathematics is in fact deeply embedded in modern life: "The algorithm that runs the world"

Sally Adee: Gastric bypass surgery is the best surgery you're not getting, said Dr Oz on his popular medical advice show in the US. Because of enthusiasm from people like him, this operation has become massively popular – but by whimsically hacking at our stomach, might we might be messing with a system far more complicated than anyone really understands? Samantha Murphy had the surgery and began to realise that losing 45 kilograms could come with some profound neurological trade-offs: "Change your stomach, change your brain"

Michael Le Page: Nowadays most people either haven't heard of the 1970 book The Limits to Growth, or believe – wrongly – that the research it was based on has been discredited. But the main message of Limits is perhaps more relevant than ever – that a delayed response to mounting environmental problems leads to catastrophe further down the line: "Boom and doom: Revisiting prophecies of collapse"

Richard Fisher: This is a simple story about a scientific mystery. Strange rumbles, whistles and blasts have been reported all over the world for centuries. In New York state, they are called "Seneca guns"; in the Italian Apennines they are described as brontidi, which means thunder-like; in Japan they are yan; and along the coast of Belgium they are called mistpouffers – or fog belches. Yet the cause is often unexplained – what on Earth could be behind them? "Mystery booms: The source of a worldwide sonic enigma"

Valerie Jamieson: It's been a sensational year for particle physics, but the Higgs boson isn't the only fascinating particle in town. Meet 11 more particles that change our understanding of the subatomic world: "11 particles for 11 physics puzzles"

David Robson: What is the secret of the legendary "flow state" that seems to mark out genius in everyone from piano virtuosos to tennis champions? With the latest brain stimulation techniques, it may soon be within everyone's reach, and Sally Adee writes with panache as she describes her own use of the technology during a terrifying marksmanship training session. This has everything I want to read in a story – drama, a revolutionary idea and some practical advice for anyone to try at home: "Zap your brain into the zone: Fast track to pure focus"

Graham Lawton: The writer of this article, Christopher Kemp, is a self-confessed lover of marginalia – nooks and crannies of science that are often overlooked. But as this beautifully written story reveals, those nooks and crannies often contain rich and fascinating material. Material, in fact, like ambergris: "Heaven scent: The grey gold from a sperm whale's gut"

Ben Crystall: Many people may remember the wonder material Starlite from an episode of BBC TV's Tomorrow's World – it seemed to have a miraculous ability to withstand fire and heat. So what happened to it? In this feature Richard Fisher uncovers the strange tale of Starlite and its eccentric inventor Maurice Ward, and on the way reveals fascinating details about Ward and his creation. And though Ward is dead, the story may not be over – it now looks like Starlite could get a second chance… "The power of cool: Whatever became of Starlite?"

Clare Wilson: I enjoyed working on this feature the most this year because to me it truly represents the future of medicine. New Scientist often predicts that some new medicine or technology will be available in five years' time. When it comes to using gene therapies or stem cell therapies on babies in the womb – the subject of this feature – the timeline is probably more uncertain, yet I don't see how anyone can doubt that some day it will happen: "Fetal healing: Curing congenital diseases in the womb"

If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.

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Tennis: Davis Cup row brews in India

CHENNAI, India: Indian tennis was hit by controversy on Wednesday over reports that top players may boycott next month's Davis Cup tie against South Korea if a slew of demands were not met.

The group of players, headed by Somdev Devvarman, want a better distribution of the Davis Cup prize money, a change in the support staff and involvement in the choice of venues for ties.

The All-India Tennis Association (AITA) and the players currently have a 50-50 share of the prize money sent by the world governing body from revenues earned from the tournament.

The players also wanted non-playing captain Shiv Misra and national coach Nandan Bal to be replaced and a full-time physiotherapist be inducted in the squad.

Both the AITA and Devvarman played down a report in Wednesday's Hindustan Times that the players could stay away from the Cup tie against the Koreans if their demands were ignored.

The Asia-Oceania group one tie in New Delhi from February 1-3 will take the winners into the play-offs for next year's elite world group.

"I don't want to point fingers at anyone or make an alarming statement," said Devvarman, who is taking part in the ongoing ATP Chennai Open.

"You will probably hear more about it in the days to come."

An AITA official, who did not want to be named, accepted the players had made suggestions which will be discussed before the Cup squad is named around January 11.

"It's not as serious an issue as is being made out," the official told AFP. "We have already spoken to the players and will arrive at an agreement soon."

Among those players supporting Devvarman' stance are senior players Mahesh Bhupathi and Rohan Bopanna, but former captain Leander Paes is not part of the group.

Trouble had also erupted ahead of the London Olympics last year when both Bopanna and Bhupathi declined to partner Paes at the Games for what they said were personal and professional reasons.

The controversy started after the AITA initially named the veteran duo of Bhupathi and Paes for the doubles, even though Bhupathi wanted to play with his then partner Bopanna.

The AITA were later forced to pick two doubles teams for the Olympics, with Paes pairing with lower-ranked Vishnu Vardhan, and Bhupathi partnering Bopanna.

Both pairs fell in early rounds at the Games.

Devvarman, who was India's top player with a ranking of 62 in mid-2011, fell to 663 by the end of last year when he was sidelined with a shoulder injury for almost seven months.

The 27-year-old proved he was fit again as he defeated the 106th-ranked Jan Hajek of the Czech Republic in the first round of the Chennai Open on Tuesday.

- AFP/de

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Crises averted, but more fights loom

STORY HIGHLIGHTS

• The vote prevents tax increases for more than 98% of Americans


• It also staves off $110 billion in automatic cuts to domestic and military spending


• Most Americans will still see a payroll tax increase after a 2011 cut expires


• Other fiscal challenges this year include the debt ceiling and a continuing budget resolution

With the fiscal cliff deal in limbo, what's your New Year's message to Washington? Go to CNN iReport to share your video.

Washington (CNN) -- After exhaustive negotiations that strained the country's patience, the House has approved a Senate bill to thwart a dreaded fiscal cliff.

The 257-167 vote Tuesday night largely fell along partisan lines: 172 Democrats voted yes and 16 Democrats voted no; 85 Republicans voted yes and 151 Republicans voted no.

House Speaker John Boehner was among the Republicans voting for the measure.

Had the House not acted, and the Bush-era tax cuts that were set last decade expired fully, broad tax increases would kick in. In addition, $110 billion in automatic cuts to domestic and military spending would take place.

The combined effect could have dampened economic growth by 0.5%, possibly tipping the U.S. economy back into a recession and driving unemployment from its current 7.7% back over 9%.

"Thanks to the votes of Democrats and Republicans in Congress, I will sign a law that raises taxes on the wealthiest 2% of Americans while preventing a middle-class tax hike that could have sent the economy back into a recession," President Barack Obama said after the House vote.

How they voted: House | Senate

The plan maintains tax cuts for individuals earning less than $400,000 and couples earning less than $450,000. It would raise tax rates for those over those levels -- marking the first time in two decades the rates jump for the wealthiest Americans.

While the deal gives President Barack Obama bragging rights for raising taxes on the wealthiest Americans, it also leaves him breaking a promise.

Obama had vowed to raise tax rates for the top-earning 2% of Americans, including those with household income above $250,000 and individuals earning more than $200,000.

Raising the threshold for higher tax rates to $400,000 shrinks the number of Americans affected.

While nearly 2% of filers have adjusted gross incomes over $250,000, only 0.6% have incomes above $500,000, according to the Tax Policy Center.

But the deal passed by the Senate would cap itemized deductions for individuals making $250,000 and for married couples making $300,000.

Specifics of the deal

According to the deal:

-- The tax rate for individuals making more than $400,000 and couples making more than $450,000 will rise from the current 35% to the Clinton-era rate of 39.6%.

-- Taxes on inherited estates will go up to 40% from 35%.

-- Unemployment insurance would be extended for a year for 2 million people.

-- The alternative minimum tax -- a perennial issue -- would be permanently adjusted for inflation.

-- Child care, tuition and research and development tax credits would be renewed.

-- The "Doc Fix" -- reimbursements for doctors who take Medicare patients -- will continue, but it won't be paid for out of the Obama administration's signature health care law.

-- A spike in milk prices -- dubbed the "dairy cliff" -- will be avoided. Agriculture Secretary Tom Vilsack said milk prices would have doubled to $7 a gallon because a separate agriculture bill had expired.

The Democratic-led Senate overwhelmingly approved the bill early Tuesday morning before passing it to the House.

More fiscal cliffs loom

House Republicans had discussed amending the Senate bill by adding spending cuts. But in the end, House lawmakers voted on the bill as written -- a so-called up or down vote.

The legislation would raise roughly $600 billion in new revenues over 10 years, according to various estimates.

"I'm a very reluctant yes," said Rep. Nan Hayworth, an outgoing Republican representative from New York.

"This is the best we can do given the Senate and the White House sentiment at this point in time, and it is at least a partial victory for the American people," she said. "I'll take that at this point."

The timing of the vote was crucial, as a new Congress is set to be sworn in Thursday.

Payroll taxes still set to go up

Despite the last-minute fiscal cliff agreements, Americans are still likely to see their paychecks shrink somewhat due to a separate battle over payroll taxes.

The government temporarily lowered the payroll tax rate in 2011 to 4.2% from 6.2% to put more money in the pockets of Americans -- but has cost about $120 billion each year. That tax cut expired Monday.

Americans earning $30,000 a year will take home $50 less per month. Those earning $113,700 will lose $189.50 a month.

The proposal laid out by the Senate and approved by the House does not address the sequester, a series of automatic cuts in federal spending. The bill just delays the sequester for two months.

So the deal adds another battle to this year's docket of congressional squabbles over money. The other two: the debt ceiling and a continuing budget resolution.

Obama said he hopes leaders in Washington this year will focus on "seeing if we can put a package like this together with a little bit less drama, a little less brinksmanship (and) not scare the heck out of folks quite as much."

He thanked bipartisan House and Senate leaders for finally reaching an resolution Tuesday, but said Congress' work this year is just beginning.

"I hope that everybody now gets at least a day off I guess, or a few days off, so that people can refresh themselves because we're going to have a lot of work to do in 2013."

Read more: 5 things to know about the fiscal cliff

Dana Bash reported from Washington; and Holly Yan reported from Atlanta. CNN's Dana Ford, Josh Levs, Matt Smith, Jessica Yellin, Deirdre Walsh, Ted Barrett and Ashley Killough contributed to this report.

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House GOP blasted for scrapping Sandy aid vote

WASHINGTON New York area-lawmakers in both parties erupted in anger late Tuesday night after learning the House Republican leadership decided to allow the current term of Congress to end without holding a vote on aid for victims of Superstorm Sandy.

Rep. Peter King, R-N.Y., said he was told by the office of Majority Leader Eric Cantor of Virginia that Speaker John Boehner of Ohio had decided to abandon a vote this session.

Cantor, who sets the House schedule, did not immediately comment. House Democratic Whip Steny Hoyer of Maryland told reporters that just before Tuesday evening's vote on "fiscal cliff" legislation, Cantor told him that he was "99.9 percent confident that this bill would be on the floor, and that's what he wanted."

A spokesman for Boehner, Michael Steel said, "The speaker is committed to getting this bill passed this month."

A House Republican aide confirmed to CBS News producer Jill Jackson that the House would not take up the bill during this session.

In remarks on the House floor, King called the decision "absolutely inexcusable, absolutely indefensible. We cannot just walk away from our responsibilities."

The Senate approved a $60.4 billion measure Friday to help with recovery from the October storm that devastated parts of New York, New Jersey and nearby states. The House Appropriations Committee has drafted a smaller, $27 billion measure, and a vote had been expected before Congress' term ends Thursday at noon.

29 Photos

Cleaning up after Sandy

29 Photos

Superstorm Sandy: State-by-state snapshots

More than $2 billion in federal funds has been spent so far on relief efforts for 11 states and the District of Columbia struck by the storm, one of the worst ever to hit the Northeast. The Federal Emergency Management Agency's disaster relief fund still has about $4.3 billion, enough to pay for recovery efforts into early spring, according to officials. The unspent FEMA money can only be used for emergency services, said Rep. Frank Pallone Jr., D-N.J.

New York, New Jersey, Connecticut, District of Columbia, West Virginia, Virginia, Maryland, New Hampshire, Delaware, Rhode Island, Pennsylvania and Massachusetts are receiving federal aid.

Sandy was blamed for at least 120 deaths and battered coastline areas from North Carolina to Maine. New York, New Jersey and Connecticut were the hardest hit states and suffered high winds, flooding and storm surges. The storm damaged or destroyed more than 72,000 homes and businesses in New Jersey. In New York, 305,000 housing units were damaged or destroyed and more than 265,000 businesses were affected.

"This is an absolute disgrace and the speaker should hang his head in shame," said Rep. Eliot Engel, D-N.Y.

"I'm here tonight saying to myself for the first time that I'm not proud of the decision my team has made," said Rep. Michael Grimm, R-N.Y. "It is the wrong decision, and I' m going to be respectful and ask that the speaker reconsider his decision. Because it's not about politics, it's about human lives."

"I truly feel betrayed this evening," said Rep. Nita Lowey, D-N.Y.

"We need to be there for all those in need now after Hurricane Sandy," said Rep. Gregory Meeks, D-N.Y.

The House Democratic leader, Rep. Nancy Pelosi of California, said she didn't know whether a decision has been made and added, "We cannot leave here doing nothing. That would be a disgrace."

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Obama Hails 'Cliff' Deal, Warns of Next Fiscal Fight

Minutes after the House of Representatives approved a bipartisan Senate deal to avert the "fiscal cliff" and preserve Bush-era tax cuts for all Americans making less than $400,000 per year, President Obama praised party leaders and wasted little time turning to the next fiscal fight.

"This is one step in the broader effort to strengthen our economy for everybody," Obama said.

Obama lamented that earlier attempts at a much larger fiscal deal that would have cut spending and dealt with entitlement reforms failed. He said he hoped future debates would be done with "a little less drama, a little less brinksmanship, and not scare folks quite as much."

But Obama drew a line in the sand on the debt ceiling, which is set to be reached by March.

"While I will negotiate over many things, I will not have another debate with this Congress over whether they should pay the bills for what they've racked up," Obama said. "We can't not pay bills that we've already incurred."

An hour after his remarks, Obama boarded Air Force One to return to his planned Hawaiian holiday vacation, reuniting with his family, who have been vacationing there since just before Christmas.

AP Photo/Charles Dharapak

'Fiscal Cliff' Negotiations: Congress Reaches Agreement Watch Video

House Republicans agreed to the up-or-down vote Tuesday evening, despite earlier talk of trying to amend the Senate bill with more spending cuts before taking a vote. The bill delays for two months tough decisions about automatic spending cuts that were set to kick in Wednesday.

A majority of the Republicans in the GOP-majority House voted against the fiscal cliff deal. About twice as many Democrats voted in favor of the deal compared to Republicans. One hundred fifty-one Republicans joined 16 Democrats to vote against the deal, while 172 Democrats carried the vote along with 85 Republicans.

The Senate passed the same bill by an 89-8 vote in the wee hours of New Year's Day. If House Republicans had tweaked the legislation, there would have been no clear path for its return to the Senate before a new Congress is sworn in Thursday.

The vote split Republican leaders in the House. House Speaker John Boehner, R-Ohio, voted yes, and so did the GOP's 2012 vice presidential candidate, Rep. Paul Ryan, R-Wis.

But House Majority Leader Eric Cantor, R-Va., the No. 2 Republican in the House, voted no. It was his opposition that had made passage of the bill seem unlikely earlier in the day.

The deal does little to address the nation's long-term debt woes and does not entirely solve the problem of the "fiscal cliff."

Indeed, the last-minute compromise -- far short from a so-called grand bargain on deficit reduction -- sets up a new showdown on the same spending cuts in two months amplified by a brewing fight on how to raise the debt ceiling beyond $16.4 trillion. That new fiscal battle has the potential to eclipse the "fiscal cliff" in short order.

"Now the focus turns to spending," said Boehner in a statement after the vote. "The American people re-elected a Republican majority in the House, and we will use it in 2013 to hold the president accountable for the 'balanced' approach he promised, meaning significant spending cuts and reforms to the entitlement programs that are driving our country deeper and deeper into debt."

Republicans hope that allowing the fiscal cliff compromise, which raised taxes without an equal amount of spending cuts, will settle the issue of tax rates for the coming debates on spending.

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2012 review: The year in health science

Read more: "2013 Smart Guide: 10 ideas that will shape the year"

The first half of 2012 will be remembered for the saga over whether or not to publish controversial research involving versions of the H5N1 bird flu virus engineered to spread more easily in mammals. In the end openness won out, and both contentious studies did finally see the light of day.

This was also the year that saw the battle to eradicate polio reach its crucial endgame – just as another problem, in the form of totally drug resistant tuberculosis, reared its head.

Away from infectious disease, 2012 brought us a theory on the link between Tutankhamun, epilepsy and the first monotheistic religion, and an insight into the perils of premature ageing in Italy's ominously named Triangle of Death. Here are 10 more of the year's memorable stories.

Babies are born dirty, with a gutful of bacteria
Far from being sterile, babies come complete with an army of bacteria. The finding could have implications for gut disorders and our health in general

Forensic failure: 'Miscarriages of justice will occur'
Our survey of UK forensic scientists reveals that many are concerned that closure of the Forensic Science Service will lead to miscarriages of justice

Scandal of an underfunded and undertreated cancer
Lung cancer in those who have never smoked is on the rise – but they face the same stigma as their smoking counterparts

Ovarian stem cells discovered in humans
Stem cells capable of forming new eggs could promise limitless eggs for IVF treatments, and the rejuvenation of older eggs

Paralysis breakthrough: spinal cord damage repaired
An implant helping paralysed people stand unaided suggests the spinal cord is able to recover function years after severe damage

A real fMRI high: My ecstasy brain scan
Graham Lawton reports the highs, lows and psychedelic purple doors involved in taking MDMA while having his brain scanned

You may carry cells from siblings, aunts and uncles
Male cells found in the umbilical cord blood of baby girls with older brothers suggests fetal cells cross between mother and baby more than once thought

Can we deter athletes who self-harm to win?
The Paralympics may encourage a debate on a dangerous practice – and potential ways to prevent it

First non-hormonal male 'pill' prevents pregnancy
A non-hormonal drug that temporarily reverses male fertility appears to have few side effects in mice

Mining MRSA genetic code halts superbug outbreak
Whole genome sequencing of an MRSA outbreak has identified the person who unwittingly spread the bacteria around a hospital, stopping further infection

If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.

All comments should respect the New Scientist House Rules. If you think a particular comment breaks these rules then please use the "Report" link in that comment to report it to us.

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Japan's Sharp considering US$1.15b public offering: report

TOKYO: Embattled Japanese electronics firm Sharp is considering making a public share offering worth more than 100 billion yen ($1.15 billion) early this year, a report said Tuesday.

The public offering could take place in the spring with the firm hoping to use the funds to strengthen its mainstay liquid crystal display (LCD) business and improve its creditworthiness, the Yomiuri Shimbun newspaper said.

Sharp has started talks with major creditor banks and wants to include the capital increase scheme in a mid-term business plan to be announced as early as February, the mass-circulation daily said without naming its sources.

The cash-strapped company said in December it had struck a 9.9-billion-yen capital injection deal with US-based chipmaker Qualcomm as it moves to repair its tattered balance sheet.

The Qualcomm deal will see the pair jointly develop energy-efficient LCD panels for smartphones using the Japanese firm's technology, with the US company initially getting about 2.64 per cent of Sharp's stock.

Japan's battered electronics sector has suffered from a myriad of problems including a high yen, slowing demand in key export markets, fierce overseas competition and strategic mistakes that left its finances in ruins.

Sharp has suffered a series of credit rating downgrades and warned it expects to lose about $5.6 billion in the fiscal year to March 2013.

The Osaka-based maker of Aquos-brand electronics has announced thousands of job losses while cutting wages for employees -- from the factory floor to the boardroom -- and selling real estate to shore up its balance sheet.

Sharp said last year it had reached a capital injection deal worth about $800 million with Taiwan's Hon Hai Precision, which makes Apple gadgets in China, but the deal stalled as Sharp's share price nosedived.

-AFP/ac

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Senate passes package to avert fiscal cliff

STORY HIGHLIGHTS

• Senate approves deal to avoid the fiscal cliff


• Obama says more work will be needed and chides Congress for dragging its feet


• "Take the 84% of your winnings off the table," anti-tax crusader advises GOP

As the fiscal cliff looms, what's your New Year's message to Washington? Go to CNN iReport to share your video.

(CNN) -- A full two hours after a midnight deadline, the Senate overwhelmingly passed a last-minute deal to avert the feared fiscal cliff on a 89-8 vote.

The Senate package would put off budget cuts for two months and preserve Bush-era income tax cuts for individuals earning less than $400,000 or couples earning less than $450,000.

Senate Minority Leader Mitch McConnell, R-Kentucky, said it shouldn't have taken so long to get an agreement, but still praised the effort.

"We've done some good for the country," he said. "Now it's time to stop Washington's out-of-control spending."

The measure now goes to the House where it faces an uncertain future in the Republican-controlled body. A House vote could come as soon as Tuesday.

"The House will honor its commitment to consider the Senate agreement ..." said a statement from the House leadership, which includes Speaker John Boehner, Majority Leader Eric Cantor, Majority Whip Kevin McCarthy, and Republican Conference Chair Cathy McMorris Rodgers. "Decisions about whether the House will seek to accept or promptly amend the measure will not be made until House members -- and the American people -- have been able to review the legislation."

Read the bill (pdf)

Under the Senate package, tax rates on income above $400,000 for individuals and $450,000 for couples would go back to the Clinton-era rate of 39.6%, up from the current 35%, and itemized deductions would be capped at $250,000 for individuals and $300,000 for couples. That would generate an estimated $600 billion in additional revenue over 10 years.

Taxes on inherited estates will go up to 40% from 35%, but the exemption will be indexed to rise with inflation -- a provision the source said was added at the insistence of moderate Democrats.

Unemployment insurance would be extended for a year for for 2 million people, and the alternative minimum tax -- a perennial issue -- would be permanently adjusted for inflation. Child care, tuition and research and development tax credits would be renewed. And the "Doc Fix" -- reimbursements for doctors who take Medicare patients -- will continue, but it won't be paid for out of the Obama administration's signature health care law.

Vice President Joe Biden had been in negotiations with McConnell since Sunday afternoon. Senate Majority Leader Harry Reid and House Minority Leader Nancy Pelosi, both Democrats, agreed to the plan in calls with President Barack Obama, a Democratic source said Monday night.

In the House, GOP sources said earlier Monday that there's little practical difference in settling the issue Monday night versus Tuesday. But if tax-averse House Republicans approve the bill on Tuesday -- when taxes have technically gone up -- they can argue they've voted for a tax cut to bring rates back down, even after just a few hours, GOP sources said. That could bring some more Republicans on board, one source said.

Economists warn the one-two punch of tax increases and spending cuts, known as "sequestration," could push the U.S. economy back into recession and drive unemployment back over 9% by the end of 2013. Obama had chided lawmakers for their last-minute scramble earlier Monday, hitting a nerve among several Republicans in the Senate.

Latest updates: Final fiscal cliff scramble

"They are close, but they're not there yet," he said. "And one thing we can count on with respect to this Congress is that if there is even one second left before you have to do what you're supposed to do, they will use that last second."

The president warned that if Republicans think they can get future deficit reduction solely through spending cuts "that will hurt seniors, or hurt students, or hurt middle-class families without asking also equivalent sacrifice from millionaires or companies with a lot of lobbyists ... they've got another thing coming."

That irked Republican senators who have been grappling for a deal with the Democratic majority in that chamber. Sen. Bob Corker, R-Tennessee, called the president's comments "very unbecoming of where we are at this moment" and added, "My heart's still pounding."

"I know the president has fun heckling Congress," Corker said. "I think he lost probably numbers of votes with what he did."

Read more: Why your paycheck is getting smaller, no matter what

As Monday's deadline drew nigh, federal agencies were preparing for the possibility of furloughing workers. At the Pentagon, a Defense Department official said as many as 800,000 civilian employees could be forced to take unpaid days off as the armed services face an expected $62 billion in cuts in 2013 -- about 12% of its budget.

Those workers perform support tasks across the department, from maintaining aircraft and weapons systems to processing military payrolls and counseling families. The Pentagon believes it can operate for at least two months before any furloughs are necessary, but has to warn its civilian workforce that furloughs could be coming, the official said.

Read more: What if there's no deal on fiscal cliff

The White House budget office noted in September that sequestration was designed during the 2011 standoff over raising the federal debt ceiling as "a mechanism to force Congress to act on further deficit reduction" -- a kind of doomsday device that was never meant to be triggered. But Congress failed to substitute other cuts by the end of 2012, forcing the government to wield what the budget office called "a blunt and indiscriminate instrument."

In its place, the Senate plan would use $12 billion in new tax revenue to replace half the expected deficit reduction from the sequester and leave another $12 billion in spending cuts, split half-and-half between defense and domestic programs.

Read more: Medicare patients may suffer if country goes over fiscal cliff

Despite Obama's backing, one leading Senate Democrat warned a deal could run into trouble -- not only from House Republicans who have long opposed any tax increase, but also from liberals in the Senate who oppose allowing more high-income households to escape a tax increase.

"No deal is better than a bad deal, and this looks like a very bad deal the way this is shaping up," Sen. Tom Harkin, D-Iowa, said. He was one of eight voting against the Senate deal

Conservative lobbyist Grover Norquist, whose Americans for Tax Reform pushes candidates to sign a pledge never to raise taxes, said the plan "right now, as explained" would preserve most of the Bush tax cuts and wouldn't violate his group's pledge.

"Take the 84% of your winnings off the table," Norquist told CNN. "We spent 12 years getting the Democrats to cede those tax cuts to the American people. Take them off the table. Then we go back and argue about making the tax cuts permanent for everyone."

But Robert Reich, who served as labor secretary in the Clinton administration, said the $450,000 threshold "means the lion's share of the burden of deficit reduction falls on the middle class, either in terms of higher taxes down the road or fewer government services." In addition, he said, the plan does nothing to raise the federal debt ceiling just as the federal government bumps up against its borrowing limit.

And that, Arizona GOP Sen. John McCain told CNN, is likely to be "a whole new field of battle."

"We just added 2.1 trillion in the last increase in the debt ceiling, and spending continues to go up," McCain said. "I think there's going to be a pretty big showdown the next time around when we go to the debt limit."

CNN's Mike Pearson, Jessica Yellin, Dana Bash, Deirdre Walsh, Lisa Desjardins, Ted Barrett and Ashley Killough contributed to this report.

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Senate Approves 'Fiscal Cliff' Deal, Sends to House

Hours past a self-imposed deadline for action, the Senate passed legislation early New Year's Day to neutralize a fiscal cliff combination of across-the-board tax increases and spending cuts that kicked in at midnight. The pre-dawn vote was a lopsided 89-8.

Senate passage set the stage for a final showdown in the House, where a vote was expected later Tuesday or perhaps Wednesday on the measure, which also raises tax rates on wealthy Americans.

Even by the recent dysfunctional standards of government-by-gridlock, the activity at both ends of historic Pennsylvania Avenue was remarkable as the administration and lawmakers spent the final hours of 2012 haggling over long-festering differences.

"It shouldn't have taken this long to come to an agreement, and this shouldn't be the model for how we do things around here," said Senate Republican leader Mitch McConnell, who negotiated the agreement with Vice President Joe Biden.

Under the deal, taxes would remain steady for the middle class and rise at incomes over $400,000 for individuals and $450,000 for couples — levels higher than President Barack Obama had campaigned for in his successful drive for a second term in office.

Spending cuts totaling $24 billion over two months aimed at the Pentagon and domestic programs would be deferred. That would allow the White House and lawmakers time to regroup before plunging very quickly into a new round of budget brinkmanship certain to revolve around Republican calls to rein in the cost of Medicare and other government benefit programs.

Officials also decided at the last minute to use the measure to prevent a $900 pay raise for lawmakers due to take effect this spring.

"One thing we can count on with respect to this Congress is that if there's even one second left before you have to do what you're supposed to do, they will use that last second," the president said in a mid-afternoon status update on the talks. Yet when the roll was called nearly 12 hours later, only six Republicans and two Democrats opposed the measure.

As darkness fell on the last day of the year, Obama, Biden and their aides were at work in the White House, and lights burned in the House and Senate. Democrats complained that Obama had given away too much in agreeing to limit tax increases to incomes over $450,000, far above the $250,000 level he campaigned on. Yet some Republicans recoiled at the prospect of raising taxes at all.

Democratic senators said they expected a post-midnight vote on the measure. They spoke after a closed-door session with Vice President Joseph Biden, who brokered the deal with Senate Republican leader Mitch McConnell.

"The argument is that this is the best that can be done on a bipartisan basis," said Sen. Dianne Feinstein, D-Calif., when asked about the case the vice president had delivered behind closed doors.

Passage would send the measure to the House, where Speaker John Boehner, R-Ohio, refrained from endorsing a package as yet unseen by his famously rebellious rank-and-file. He said the House would not vote on any Senate-passed measure "until House members — and the American people — have been able to review" it.

Numerous GOP officials said McConnell and his aides had kept the speaker's office informed about the progress of the talks.

The House Democratic leader, Rep. Nancy Pelosi of California, issued a statement saying that when legislation clears the Senate, "I will present it to the House Democratic caucus."

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2013 Smart Guide: Curiosity to reach Mars mother lode

Read more: "2013 Smart Guide: 10 ideas that will shape the year"

NASA'S Curiosity rover is about to have its cake and eat it too. Around September, the rover should get its first taste of layered sediments at Aeolis Mons, a mountain over 5 kilometres tall that may hold preserved signs of life on Mars.

Previous rovers uncovered ample evidence of ancient water, a key ingredient for life as we know it. With its sophisticated on-board chemistry lab, Curiosity is hunting for more robust signs of habitability, including organic compounds - the carbon-based building blocks of life as we know it.

Observations from orbit show that the layers in Aeolis Mons - also called Mount Sharp - contain minerals thought to have formed in the presence of water. That fits with theories that the rover's landing site, Gale crater, was once a large lake. Even better, the layers were probably laid down quickly enough that the rocks could have held on to traces of microorganisms, if they existed there.

If the search for organics turns up empty, Aeolis Mons may hold other clues to habitability, says project scientist John Grotzinger of the California Institute of Technology in Pasadena. The layers will reveal which minerals and chemical processes were present in Mars's past. "We're going to find all kinds of good stuff down there, I'm sure," he says.

Curiosity will explore a region called Glenelg until early February, and then hit the gas. The base of the mountain is 10 kilometres away, and the rover can drive at about 100 metres a day at full speed. The journey should take between six and nine months, but will include stops to check out any interesting landmarks. After all, some of the most exciting discoveries from Mars rovers were a result of serendipity.

"It's a discovery-driven mission," Grotzinger says. "We picked this site because we wanted to go to Mount Sharp. But we'll kind of follow our nose, and see where it leads us off on side trails."

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