The depth and diversity of languages in Sydney rivals the world's largest cities.
Inga Ting and Eryk Bagshaw Living solo and loving it, or alone and down on your luck? It might depend on whether you're a man or woman.
Inga Ting and Patrick Begley It is potentially one of the most costly battles the Labor Party has lost.
Inga Ting and Conrad Walters The Germanwings flight that plunged into the Alps from 38,000 feet has sparked a natural reaction in any traveller. Is aviation safe?
MARC MONCRIEF The medicare co-payment, or some variation thereof, is reportedly back on the table.
MARC MONCRIEF Chinese investors have bought prominent properties near Bendigo in the latest purchase to raise concerns that Australia is "selling the farm".
INGA TING The gender pay gap has hit a 20-year high, with women in one industry earning the same amount their male colleagues were earning 10 years ago.
Tom Decent, Conrad Walters Be careful this afternoon - the deadliest time to be on NSW roads in the past 15 years was on a Saturday.
MARC MONCRIEF Patricia Arquette struck a nerve with her call for equal pay for women, then struck a raw one with her call for 'people of colour' to get on board. The data suggets she had a point, but only to a point.
INGA TING With so much data at our fingertips, are we any closer to finding an algorithm for love?
MARC MONCRIEF Tony Abbott isn't happy about the latest report from the Australian Human Rights Commission. He says it's a partisan hatchet job.
ANDREW DARBY In the latest attempt to grasp the scale of the marine pollution crisis, researchers estimate around 8 million tonnes of plastic is being added to the oceans each year.
Conrad Walters, Data Editor Hurstville, 16 kilometres west of Sydney's CBD, occupies a unique spot on our demographic map.
Conrad Walters, Data Editor Welcome home, Peter Greste. For 400 days, we watched your parents, concerned but dignified, and your brother, persistent and loyal, await your freedom.
Heath Aston, Matthew Knott and Inga Ting Political donations to the major parties quadrupled in 2013/14, encompassing the lead-up to the federal election, including a donation of almost $1 million to the Labor Party from a mysterious Chinese donor.
MARC MONCRIEF You are 37, and a woman. You have a son and a daughter, aged six and nine. You live in a three-bedroom house. You have $200,000 still to pay on your mortgage. You are the statistically average Australian.
Inga Ting, Conrad Walters One third of Australians arrested abroad for capital crimes in the past 30 years received the death penalty. Fewer than one in five walked free.
AMY MCNEILAGE Universities say business and health degrees were the most popular this year, with strong growth in areas such as nursing, physiotherapy and exercise science.
INGA TING Is ti nature of nurture that leads to academic achievement? The debate is far from over.
INGA TING Students of east and south-east Asian background were the top-performing group in 10 of the 13 most popular courses on the 2013 Higher School Certificate honour roll, new research shows.
MARC MONCRIEF Modern newlyweds are now well into their 30s and marriage still offers something powerful a new book argues.
Nicky Phillips and Conrad Walters Australians take pride in being a competitive nation. We relish our world-leading position in many fields of endeavour, but we are far from the podium in one important area.
ESTHER HAN Mez Gallifuoco has hips that measure 102cm, like the average Australian woman according to the Bureau of Statistics. But depending on where she shops, the "perfect fit" can span three sizes.
Conrad Walters, Data Editor A gargantuan effort by the CSIRO to map the condition of Australia's soil is unique in the world.
Conrad Walters and Inga Ting It's killed more people than SARS or bird flu, and has one of the highest mortality rates in history. But how serious a threat is Ebola?
CONRAD WALTERS World War 1, by some measures the deadliest of all conflicts, is still as relevant today 100 years after the beginning of the event.
Eryk Bagshaw, Conrad Walters The average person in remote western NSW can expect to live a shorter life than someone in North Korea, the latest Australian Bureau of Statistics data has revealed.
INGA TING Deaths in prison, police or immigration custody are at their highest level in a decade and a half, the latest figures from the NSW State Coroner show.
CONRAD WALTERS Sorry, Phar Lap. You're stuffed in Melbourne, and you wouldn't be a safe bet for this year's Cup.
Bridie Smith and Inga Ting Australia’s ecological footprint is the 13th-largest in the world - and is likely to get bigger following the repeal of the carbon tax, conservation group WWF has warned.
Inga Ting and Nicky Phillips The Australian government's investment in research and development has dropped to its lowest level in 30 years, an analysis of government figures shows.
INGA TING The Australian public, not individuals, gains most from higher education but students shoulder most of the cost, according to international figures that undermine the government's claim that students should pay more because they benefit most.
INGA TING Australia has fallen sharply in international green economy rankings, coming last out of 60 countries for performance on political leadership and climate change, and 37th overall.
CRAIG BUTT Enrolments in tertiary information technology courses have been falling, as local female students recoil from the sector's masculine reputation.
INGA TING Those familiar with this country's dismal record of deaths in custody will not be surprised by the disturbing similarities between Ms Dhu's death and many deaths before hers.
RACHEL OLDING Country towns in northern NSW are in the midst of a ''tsunami'' of crime.
INGA TING The expense of alcohol is driving Australia's high rates of illicit drug use, health experts say, as new figures show Australia's combination of high levels of use and expensive illicit substances buck international trends.
TOBY JOHNSTONE Parramatta or Paddington? New data from the Domain Group charts the city's best and worst performers.
Esther Han and Inga Ting Celebrated chef Guillaume Brahimi is set to open a new fine dining restaurant, as new figures show patrons of premium restaurants are spending more.
Jacob Saulwick, Toby Johnstone, Michael Koziol Buy or rent? Ross Hoskins never gave the latter a try.
Judith Ireland, Conrad Walters We dig into the much-criticised benefit.
Sarah Whyte and Inga Ting The number of refugees, asylum seekers and internally displaced people worldwide has exceeded 50 million for the first time since World War II, a United Nations report shows.
Esther Han and Inga Ting Dating and romance-related fraud netted $25.2 million last year.
Esther Han, Inga Ting The government has bagged an unprecedented $360 million from household bank accounts since a controversial change to unclaimed money laws.
CONRAD WALTERS Female librarians and women working with the disabled, take a bow. Since 2001, you have received more Order of Australia honours than your male counterparts. That's 185 of you, compared with 145 men.
ANNA PATTY Termination of schools funding under the Gonski model after four years will deliver an ''overpayment'' of $169 million a year to 163 wealthy independent schools in NSW, analysis shows.
PETER MUNRO We are not amused ... well, certainly Republicans aren't, as support for the monarchy among Australia's youth soars. Peter Munro meets those young 'uns who proudly dips their lids to Lizzie, Wills and Kate.
INGA TING A prison sentence - even after it has been served - can be a death sentence.
United States Correspondent
NICK O'MALLEY The way Jerry Williams tells the story he was just mucking around with friends when some kids said he stole a slice of pizza. He ended up with a 25-to-life prison sentence under California's ''three strikes'' law.
Nicky Phillips, Conrad Walters A puddle of water was not what Mark Curran expected to find when he arrived at the Australian Antarctic Division in Kingston to check the ice cores he helped drill in Antarctica over summer.
Inga Ting, Conrad Walters The average number of days in detention has risen every month for the past eight months.
Nick Ralston International drug cartels are increasingly targeting the Australian market due to a rise in demand and the price consumers are willing to pay, with latest figures showing drug seizures and arrests at record highs.
AMY CORDEROY Doctors in Australia's biggest hospitals are routinely failing to wash their hands before touching patients, new figures show.
Kate Hagan, Craig Butt Victorian children are waiting too long for elective surgery with hundreds of patients listed for semi-urgent operations at the Royal Children's Hospital missing out on treatment within 90 days, new data shows.
INGA TING Sam Taylor's children were just 6 and 14 when she was asked to make a choice no woman ever wants to make.
Amy Corderoy, Lucy Carroll Australians are in denial about their alcohol use, tens of thousands are potentially drinking at risky levels and those in the most danger are seemingly clueless they have a problem, the Global Drug Survey has found.
Esther Han, Inga Ting Rodents, bugs, filth and expired food have caused nearly 300 supermarkets, greengrocers and delis to be slapped with fines over the past six years, data from the NSW Food Authority shows.
HEATH GILMORE It is the great university purge. Nearly one in five domestic students will probably leave their studies by the end of their first year.
CONRAD WALTERS Drought kicked Cameron Rowntree in the gut this week. Spurred by the costs of feeding his cattle, the fourth-generation Walgett farmer thinned his herd by selling stock.
INGA TING Countries that rely strongly on private insurance to fund healthcare have more expensive health systems, the federal government's Commission of Audit has been told.
INGA TING Among taxpayers who claim a deduction for their generosity, the proportion of money given away by low-income earners is 11 times higher than that of wealthy taxpayers.
Nick Ralston, Amy Corderoy, Inga Ting Three-quarters of women killed in NSW die at the hands of loved ones, a statistic that has led the NSW Police Commissioner to warn that domestic violence is one of the ''biggest issues modern society has to face''.
Richard Cornish Salmonella poisoning has almost doubled in the past decade. Following a spate of local and international incidents, we investigate why this is happening.
DAN HARRISON Billions of taxpayers' dollars could be saved from the public health budget without reducing levels of service and care, according to a former head of the federal Health Department.
JOSEPHINE TOVEY 'Get rich quick'' schemes to sell schools in Sydney's inner suburbs over the past 20 years have backfired, parents and public education advocates say, with many of the remaining schools now close to full and the state government exploring the need for an inner-city high school.
Jacob Saulwick, Alexandra Back Public transport fare evaders cost NSW about $120 million a year, according to the first detailed survey of Sydney's bus, rail and ferry passengers.
Alex Nicholson Extreme sports have paved the way for Australia's hopes in the Winter Olympics.
JONATHAN SWAN The Coalition appears to be vastly better off than Labor, with the Liberals and Nationals making about $26 million more than their political opponents last year.
TOBY JOHNSTONE It is the only club in Sydney where Point Piper residents rub shoulders with the nouveau-riche of Kenthurst, where Mosman meets Matraville and Burwood and Birchgrove are equal.
ESTHER HAN Australians love steak, but our aversion to the bits left behind has made us one of the biggest purveyors of offal in the world.
Josephine Tovey, Inga Ting Parents with children in NSW selective schools pay voluntary fees on average five times the amount of those with children in comprehensive public schools, creating a stark inequality within the public school system, an analysis by Fairfax Media reveals.
INGA TING Higher prices for alcohol will do little to curb high-intensity drinking because binge drinkers commonly drink little or nothing on some days so they can binge on the weekend, leading public health experts warn.
Peter Munro Steroids have become the drug of choice for people who start injecting illicit substances, eclipsing methamphetamines and heroin in popularity among young men.
Matt Wade It has Taronga Zoo, Balmoral Beach and a higher annual income than several African nations. Mosman's postcode, 2088, has the largest combined taxable income in Australia - a handy $2.5 billion, the latest tax data shows.
Lucy Marks, Craig Butt, Caroline Zielinski Karen Di Stefano does not see her homosexuality as anything out of the ordinary. ''It doesn't define who I am,'' says Ms Di Stefano, who has lived with her partner Amanda Harris in Frenchs Forest for three years.
Caroline Zielinski and Craig Butt Caroline Jemison says a trip to her local shopping centre often leaves her wondering if she and her partner Fiona Campbell are the only lesbians in Airport West.
RACHEL BROWNE With premiums steadily rising, many people are cutting back their healthcare cover, writes Rachel Browne.
Rachel Browne, Michaela Whitbourn Almost half of donations to some popular charities are spent on fund-raising, prompting calls for more transparency as the Coalition prepares to abolish the body set up to regulate not-for-profit organisations.
AMY MCNEILAGE Looking at trends in this year's HSC results, one could be forgiven for thinking the results were from the 1950s.
AMY MCNEILAGE Almost 55,000 of the state's school leavers will find out their ATAR on Thursday. But it is doubtful many, if any, will truly understand the intricacies of how it was calculated.
NICK O'MALLEY One year after the Sandy Hook massacre, America is still fiercely divided over its gun laws.
MARK HAWTHORNE The story of Holden and its demise needs to be viewed through a global lens if it's to be fully understood.
NICK O'MALLEY Australia has again become a focus of the increasingly bitter debate over gun control in the United States.
AMY MCNEILAGE Many of the world's most mathematically gifted teenagers come from countries with the most lucrative tutoring industries.
MATT WADE Sitting through lectures and tutorials may be worth more than you think: the wellbeing value of a university degree is nearly $1 million.
INGA TING Indigenous health has not improved at all in many areas of Australia over the past decade, data released by the Australian Bureau of Statistics on Wednesday showed.
Michaela Whitbourn The man accused of murdering his fiancee by throwing her off the balcony of their Hyde Park apartment may have improved his chances of being found innocent by being tried without a jury.
JOSEPHINE TOVEY It is the "baffling contrast" in gender equality in Australia: girls generally outperform boys at school, and are more likely to hold a bachelor degree, but men continue to earn more than women in the workplace and overwhelmingly dominate leadership roles.
MATT WADE Statistics charting progress across Australian election years tell an interesting story, writes Matt Wade
AMY CORDEROY Children as young as 12 who live in areas saturated with liquor outlets are more likely to drink than their peers, researchers say.
Dan Harrison Melburnians are being admitted to hospital at the highest rates in the nation for conditions that should not need hospital treatment.
INGA TING We've never been more preoccupied with what, where and how to eat, so why are we fatter than ever and less capable of preparing food for ourselves? Here are the facts and figures.
Ten Sydney suburbs account for almost 30 per cent of the city's gun violence.
Nearly 70,000 asylum seekers have tried to reach Australia since 1990. More than 1500 have died along the way.
How would you balance the books? Have a go at being the Treasurer with our interactive.
How Australia got to 23 million.
Browse through data on Australia's population to see how we live.
Our interactive map compares modes of travel in the Victorian capital.
Bullets over the 'burbs: a year of shootings.
Our interactive tour of the attack, the terrorist and the lives lost.
Friends with money: the global social phenomenon.
Map the links between Australia's top companies.
Australian startup innovation goes to Silicon Valley.
The road home for Aussie soldiers injured in battle.
Visualise all the numbers in the 2012 Federal Budget.
Searchable database: How NSW schools rank.