Australia

Australian House Committee To Look Into Age Verification For Porn (zdnet.com) 62

An anonymous reader quotes a report from ZDNet: Australia is once again deciding to follow in the tracks of the United Kingdom, with the House of Representatives Standing Committee on Social Policy and Legal Affairs to look into age verification for online pornography and online wagering. The matter was referred to the committee by the Minister for Families and Social Services, Senator Anne Ruston and Minister for Communications, Cyber Safety, and the Arts, Paul Fletcher. The terms of reference for the inquiry state that it will be looking into age verification under the auspices of protecting children online.

The committee will look into "the potential benefits of further online age verification requirements, including to protect children from potential harm, and business and non-government organizations from reputation, operational and legal risks," the terms state. Potential risks and unintended consequences for age verification will be looked into as well, the terms state, including privacy breaches, freedom of expression, false assurance, and whether adults are pushing into "unregulated/illegal environments or to other legal forms of these activities." The committee will also examine the economic impact of age verification, and the impact on "eSafety resourcing, education, and messaging."
The UK's age verification system for online pornography became mandatory on July 15.
Australia

Australia Formally Censors Christchurch Attack Videos (theguardian.com) 318

"Australian internet service providers have been ordered to block eight websites hosting video of the Christchurch terrorist attacks," according to the Guardian.

Slashdot reader aberglas shares their report: In March, shortly after the Christchurch massacre, Australian telecommunications companies and internet providers began proactively blocking websites hosting the video of the Christchurch shooter murdering more than 50 people or the shooter's manifesto. A total of 43 websites based on a list provided by Vodafone New Zealand were blocked. The government praised the internet providers despite the action being in a legally grey area by blocking the sites from access in Australia for people not using virtual private networks (VPNs) or other workarounds.

To avoid legal complications the prime minister, Scott Morrison, asked the e-safety commissioner and the internet providers to develop a protocol for the e-safety commissioner to order the websites to block access to the offending sites. The order issued on Sunday covers just eight websites, after several stopped hosting the material, or ceased operating, such as 8chan. The order means the e-safety commissioner will be responsible for monitoring the sites. If they remove the material they can be unblocked. The blocks will be reviewed every six months.

"The remaining rogue websites need only to remove the illegal content to have the block against them lifted," the e-safety commissioner, Julie Inman Grant, said.

Privacy

Australian Federal Government Adopts 'Nuanced' Position On Data-Sharing Consent (zdnet.com) 29

BoogieChile writes: "Nuanced" in this case meaning: they don't need it. A discussion paper on Australia's Data Sharing and Release Legislative Reforms "tweaks" proposed new Data Sharing and Release legislation by removing the requirement for people to consent to the sharing of personal information. "Instead, we are placing the responsibility on Data Custodians and Accredited Users to safely and respectfully share personal information where reasonably required for a legitimate objective," it says.

The paper says that following feedback, the government has "nuanced" its position on consent. "While consent is important in certain situations, the societal outcomes of fair and unbiased government policy, research, and programs can outweigh the benefits of consent, provided privacy is protected," it says. "The Office of the National Data Commissioner will encourage the use of consent where appropriate when applying the Data Sharing Principles, although the legislation will not require it in all circumstances."
According to the government, requiring consent for all data sharing will lead to biased data that delivers the wrong outcomes.

"The Data Sharing and Release legislation is about improving government policy and research by helping government and researchers use a better evidence base. If we required consent, then data would only be shared where consent was given," the paper says. "This will skew the data which is shared, leaving it unfit for many important purposes in the public benefit; it also runs the risk of leading to flawed policy and research which impacts negatively on society."
Portables (Apple)

Airlines Worldwide Are Banning MacBook Models in Checked Luggage Regardless of Recall Status (gizmodo.com) 62

Following an Apple notice that a "limited number" of 15-inch MacBook Pros may have faulty batteries that could potentially create a fire safety risk, multiple airlines have barred transporting Apple laptops in their checked luggage -- in some cases, regardless of whether they fall under the recall. From a report: Bloomberg reported Wednesday that Qantas Airways and Virgin Australia had joined the growing list of airlines enforcing policies around the MacBook Pros. In a statement by email, a spokesperson for Qantas told Gizmodo that "[u]ntil further notice, all 15 inch Apple MacBook Pros must be carried in cabin baggage and switched off for flight following a recall notice issued by Apple." Virgin Australia, meanwhile, said in a "Dangerous Goods" notice on its website that any MacBook model "must be placed in carry-on baggage only. No Apple MacBooks are permitted in checked in baggage until further notice."

Both Singapore Airlines and Thai Airways also recently instituted policies around the MacBook Pros. In a statement on its website over the weekend, Singapore Airlines said that passengers are prohibited from bringing affected models on its aircraft either in their carry-ons or in their checked luggage "until the battery has been verified as safe or replaced by the manufacturer." Bloomberg previously reported that airlines TUI Group Airlines, Thomas Cook Airlines, Air Italy, and Air Transat also introduced bans on the laptops. The cargo activity of all four is managed by Total Cargo Expertise, which reportedly said in an internal notice to its staff that the affected devices are "prohibited on board any of our mandate carriers."

Censorship

China Intercepts WeChat Texts From US and Abroad, Researcher Says (npr.org) 27

China is intercepting texts from WeChat users living outside of the country, mostly from the U.S. Taiwan, South Korea, and Australia. NPR reports: The popular Chinese messaging app WeChat is Zhou Fengsuo's most reliable communication link to China. That's because he hasn't been back in over two decades. Zhou, a human rights activist, had been a university student in 1989, when the pro-democracy protests broke out in Beijing's Tiananmen Square. After a year in jail and another in political reeducation, he moved to the United States in 1995. But WeChat often malfunctions. Zhou began noticing in January that his chat groups could not read his messages. "I realized this because I was expecting some feedback [on a post] but there was no feedback," Zhou tells NPR at from his home in New Jersey.

As Chinese technology companies expand their footprint outside China, they are also sweeping up vast amounts of data from foreign users. Now, analysts say they know where the missing messages are: Every day, millions of WeChat conversations held inside and outside China are flagged, collected and stored in a database connected to public security agencies in China, according to a Dutch Internet researcher. Zhou is not the only one experiencing recent issues. NPR spoke to three other U.S. citizens who have been blocked from sending messages in WeChat groups or had their accounts frozen earlier this year, despite registering with U.S. phone numbers. This March, [Victor Gevers, co-founder of the nonprofit GDI Foundation, an open-source data security collection] found a Chinese database storing more than 1 billion WeChat conversations, including more than 3.7 billion messages, and tweeted out his findings. Each message had been tagged with a GPS location, and many included users' national identification numbers. Most of the messages were sent inside China, but more than 19 million of them had been sent from people outside the country, mostly from the U.S., Taiwan, South Korea and Australia.

Power

More Airlines Ban MacBook Pros In Checked Luggage (bloomberg.com) 98

Qantas airlines is now restricting MacBook Pro laptops from checked-in luggage on concern that batteries could catch fire. All 15-inch versions of Apple's MacBook Pro must be carried in the cabin and switched off, Qantas said in a statement Wednesday. The rule went into effect Tuesday morning. "Rival Virgin Australia went further on Aug. 26, banning all Apple laptops from checked-in luggage," adds Bloomberg. From the report: Australia's two biggest airlines join a growing list of carriers and jurisdictions across the world cracking down on the portable computers out of concern some could self-combust. The models in question are some 15-inch MacBook Pros sold from September 2015 to February 2017. Apple issued the recall in June, saying "in a limited number of older generation 15-inch MacBook Pro units, the battery may overheat and pose a fire safety risk." Singapore Airlines Ltd. and Thai Airways International PCL have already stopped passengers from taking any of the affected models on their aircraft.
Australia

Australia Plans To Block Domains That Host Terrorist Material During Crisis Situations (gizmodo.com) 96

Australia laid out some of the country's first concrete steps to make good on its promise of combating the spread of extremism online at this year's G7 leader's forum, Reuters reported Sunday. From a report: Officials said the government intends to cut off all access to any internet domain that fails to block terrorist material during a crisis event, and legislation requiring online platforms to upgrade their safety measures is also being considered. "We are doing everything we can to deny terrorists the opportunity to glorify their crimes," said Australian Prime Minister Scott Morrison, per Reuters. These measures come in the wake of a terrorist attack in March that killed 51 people at two mosques in New Zealand. The tragedy was livestreamed on Facebook, with the footage quickly spreading to other online platforms that, in turn, hurried to shut it down. The incident prompted increased scrutiny from both Australia and New Zealand about how these platforms moderate their content.

Officials said they're establishing a framework to enable them to block access to domains hosting extremist violence, a decision which would be determined by Australia's eSafety Commissioner on a case-by-case basis. Hosting material "showing murder, attempted murder, rape, torture, or kidnapping" recorded by someone involved in the act, per Reuters, would also trigger a government block on that domain. To help police this new policy, the country plans to establish a 24/7 Crisis Coordination Centre to suss out such material online.

Earth

New 60-Mile Pumice Raft Could Help Restore Australia's Great Barrier Reef (weather.com) 37

"A huge raft of pumice created by an underwater volcano is floating toward Australia, and it could help the Great Barrier Reef recover from bleaching," reports Weather.com: The pumice raft is about 60 square miles -- almost as big as Washington D.C. Scientists say it was formed earlier this month by an underwater volcano near Tonga, some 2,000 miles east of Brisbane, Australia, in the South Pacific Ocean. As lava spewed from the volcano, it cooled into pumice stone, which is full of holes and can easily float, according to NASA. As this island of stone drifts toward Australia, it becomes home to countless marine creatures, Queensland University of Technology geologist Scott Bryan told the Australian Broadcasting Corporation.

"There's probably billions to trillions of pieces of pumice all floating together and each piece of pumice is a vehicle for some marine organism," Bryan said. "When it gets here, it'll be covered in a whole range of organisms of algae and barnacles and corals and crabs and snails and worms." He said the millions of individual corals have the potential of finding new homes along Australia's coastline. The pumice raft "is a natural mechanism for species to colonize, restock and grow in a new environment," he said. "It's just one way that nature can help promote regeneration."

"Based on past pumice raft events we have studied over the last 20 years, it's going to bring new healthy corals and other reef dwellers to the Great Barrier Reef," Bryan told The Guardian... Bryan said pieces of pumice should turn up along Australia's coastline in seven to 12 months.

HP

HP Names Head of Printer Division As New CEO (pplware.sapo.pt) 27

Longtime HP veteran Enrique Lores, who runs the $20 billion printer business, is succeeding Dion Weisler effective November 1. Weisler, who was named CEO in late 2014 after the computing behemoth was split into two companies, is returning to Australia for a "family health matter." He will remain on the company's board. MarketWatch reports: Lores, a native of Spain who started his 30-year career as an intern, vowed to "simplify" and "evolve" the company's business model during a conference call with analysts following the earnings release. The executive change comes amid wrenching changes -- and turmoil -- in the PC market, raising the question of where the market is headed for the rest of the year.
Earth

The Banana Is One Step Closer To Disappearing (nationalgeographic.com) 195

An anonymous reader quotes a report from National Geographic: A fungus that has wreaked havoc on banana plantations in the Eastern Hemisphere has, despite years of preventative efforts, arrived in the Americas. ICA, the Colombian agriculture and livestock authority, confirmed on Thursday that laboratory tests have positively identified the presence of so-called Panama disease Tropical Race 4 on banana farms in the Caribbean coastal region. The announcement was accompanied by a declaration of a national state of emergency. The discovery of the fungus represents a potential impending disaster for bananas as both a food source and an export commodity. Panama disease Tropical Race 4 -- or TR4 -- is an infection of the banana plant by a fungus of the genus Fusarium. Although bananas produced in infected soil are not unsafe for humans, infected plants eventually stop bearing fruit. First identified in Taiwanese soil samples in the early 1990s, the destructive fungus remained long confined to Southeast Asia and Australia, until its presence was confirmed in both the Middle East and Africa in 2013. Experts feared an eventual appearance in Latin America, the epicenter of the global banana export industry. No known fungicide or biocontrol measure has proven effective against TR4.
Nintendo

Kotaku Posts 'A Reminder That Video Games Are A Force For Good' (kotaku.com.au) 42

An anonymous reader quotes Kotaku Australia: Spurred on by the recent discussions of video games and violence, and spurred on by the emotional and often downbeat tone of that discussion, a user on Twitter posted a simple thought exercise. Rather than talking about the misery and pain of the week, what if people shared all the times Nintendo games changed lives instead?

Unsurprisingly, the tweet went viral with over 22,000 retweets and 31,200 likes, prompting a trending discussion where people began sharing tales of how Nintendo games have served as a force for good.... Users began retelling stories of the first times they shared a Nintendo game with their parents. Others spoke about times how Nintendo games helped them while they were being bullied at school, difficult situations at home, or just being able to connect with people over a shared interest.

The responses included game players with autism or depression, with other gamers sharing stories about bonding with a parent, getting inspired to pursue a career, or meeting friends or future spouses in online games.

Any Slashdot readers want to share their own thoughts on whether videogames are "a force for good"?
AI

Mysterious, Ancient Radio Signals Keep Pelting Earth. Astronomers Designed an AI to Hunt Them Down. (livescience.com) 51

An anonymous reader shares a report: Sudden shrieks of radio waves from deep space keep slamming into radio telescopes on Earth, spattering those instruments' detectors with confusing data. And now, astronomers are using artificial intelligence to pinpoint the source of the shrieks, in the hope of explaining what's sending them to Earth from -- researchers suspect -- billions of light-years across space. Usually, these weird, unexplained signals are detected only after the fact, when astronomers notice out-of-place spikes in their data -- sometimes years after the incident. The signals have complex, mysterious structures, patterns of peaks and valleys in radio waves that play out in just milliseconds. That's not the sort of signal astronomers expect to come from a simple explosion, or any other one of the standard events known to scatter spikes of electromagnetic energy across space.

Astronomers call these strange signals fast radio bursts (FRBs). Ever since the first one was uncovered in 2007, using data recorded in 2001, there's been an ongoing effort to pin down their source. But FRBs arrive at random times and places, and existing human technology and observation methods aren't well-primed to spot these signals. Now, in a paper published in the journal Monthly Notices of the Royal Astronomical Society, a team of astronomers wrote that they managed to detect five FRBs in real time using a single radio telescope. Wael Farah, a doctoral student at Swinburne University of Technology in Melbourne, Australia, developed a machine-learning system that recognized the signatures of FRBs as they arrived at the University of Sydney's Molonglo Radio Observatory, near Canberra.

Earth

July Was the Hottest Month On Record, Global Data Shows (cnn.com) 294

European climate researchers said Monday that last month was the hottest July -- and thus the hottest month -- ever recorded (Warning: source may be paywalled; alternative source), slightly eclipsing the previous record-holder, July 2016. "While July is usually the warmest month of the year for the globe, according to our data it also was the warmest month recorded globally, by a very small margin," Jean-Noel Thepaut, head of the Copernicus Climate Change Service, said in a statement. The New York Times reports: The service, part of an intergovernmental organization supported by European countries, said the global average temperature last month was about 0.07 degree Fahrenheit (0.04 Celsius) hotter than July 2016. The researchers noted that their finding was based on analysis of only one of several data sets compiled by agencies around the world. The climate service noted some regional temperature differences in July. Western Europe was above average, in part because of a heat wave that occurred during the last week of the month and set temperature records in Germany, the Netherlands and elsewhere. A rapid analysis released last week found that climate change made the heat wave more likely. "The highest above-average conditions were recorded across Alaska, Greenland and large swathes of Siberia," the report adds. "Large parts of Africa and Australia were warmer than normal, as was much of Central Asia. Cooler than average temperatures prevailed in Eastern Europe, much of Asia, the Northern Plains and Pacific Northwest of the United States and over large parts of Western Canada."
Social Networks

Facebook, Instagram and WhatsApp Suffer Outages Again (engadget.com) 39

"Facebook still can't avoid widespread outages, it seems," writes Engadget: Numerous reports have surfaced of Facebook, Instagram and WhatsApp being unavailable to various degrees on the morning of August 4th. The failure doesn't appear to have been as dramatic as it was in July, when image services were out for several hours (we had at least some success visiting them ourselves). Still, it likely wasn't what you were hoping for if you wanted to catch up on your social feeds on a lazy Sunday morning.
UPI has more information: Some Instagram users could not log into their accounts while Facebook users globally could not use sharing features, upload photos and comment, The Mirror reported. Others received messages stating that the site needed maintenance and would be up again soon.

The Express said that the outage monitoring website Down Detector logged more than 7,000 reports issues on Facebook. Down Detector said that Facebook started having problems about 9:30 a.m., Eastern time. About 34 percent of the complaints said they faced "total blackout." Another 33 percent of the complainants said there were issues with its newsfeed while 32 percent said they could not log in.

CNet.com reported that users across the United States, Canada, Australia and parts of Asia claimed that had lack of access Sunday morning

Encryption

Is Facebook Planning on Backdooring WhatsApp? (schneier.com) 131

Bruce Schneier: This article points out that Facebook's planned content moderation scheme will result in an encryption backdoor into WhatsApp: "In Facebook's vision, the actual end-to-end encryption client itself such as WhatsApp will include embedded content moderation and blacklist filtering algorithms. These algorithms will be continually updated from a central cloud service, but will run locally on the user's device, scanning each cleartext message before it is sent and each encrypted message after it is decrypted. The company even noted. that when it detects violations it will need to quietly stream a copy of the formerly encrypted content back to its central servers to analyze further, even if the user objects, acting as true wiretapping service. Facebook's model entirely bypasses the encryption debate by globalizing the current practice of compromising devices by building those encryption bypasses directly into the communications clients themselves and deploying what amounts to machine-based wiretaps to billions of users at once."

Once this is in place, it's easy for the government to demand that Facebook add another filter -- one that searches for communications that they care about -- and alert them when it gets triggered. Of course alternatives like Signal will exist for those who don't want to be subject to Facebook's content moderation, but what happens when this filtering technology is built into operating systems?
Separately The Guardian reports: British, American and other intelligence agencies from English-speaking countries have concluded a two-day meeting in London amid calls for spies and police officers to be given special, backdoor access to WhatsApp and other encrypted communications. The meeting of the "Five Eyes" nations -- the UK, US, Australia, Canada and New Zealand -- was hosted by new home secretary, Priti Patel, in an effort to coordinate efforts to combat terrorism and child abuse.
UPDATE: 8/2/2019 On Friday technologist Bruce Schneier wrote that after reviewing responses from WhatsApp, he's concluded that reports of a pre-encryption backdoor are a false alarm. He also says he got an equally strong confirmation from WhatsApp's Privacy Policy Manager Nate Cardozo, who Facebook hired last December from EFF. "He basically leveraged his historical reputation to assure me that WhatsApp, and Facebook in general, would never do something like this."
Australia

How Sydney Destroyed Its Trams For Love of the Car (theguardian.com) 308

An anonymous reader shares a report from The Guardian about the questionable decision in the 1950s to get rid of Sydney's trams in favor of private cars. From the report: In the late 1950s Sydney ripped up its tram network, once one of the largest in the world. Nearly 1,000 trams -- some only a few years old -- were rolled to the workshops in the city's eastern suburbs and stripped of anything that could be sold, before being unceremoniously tipped on their sides, doused with sump oil and set ablaze. Barely a decade before its closure, Sydney's tram system had carried 400 million passenger journeys a year on a network of more than 250km, primarily serving the eastern, southern and inner-west suburbs, and stretching as far north as Narrabeen at its peak. But the explosion of car traffic in the postwar years persuaded the New South Wales government that urban freeways were the way of the future (the first in Australia, the Cahill Expressway, opened in 1958), and trams were an impediment to that vision.

The destruction of the network from the mid-50s was swift and brutal. In 1958 the bizarre castellated Fort Macquarie depot at Circular Quay was demolished to make way for the Opera House, and the lines along George Street were torn up. The last Sydney tram ran on 25 February 1961 from Hunter Street to La Perouse (along much of the same route now being rebuilt), packed to the rafters and greeted by crowds of people, before it joined the dismal procession to "burning hill" at Randwick. Mathew Hounsell, a senior research consultant at the Institute for Sustainable Futures at the University of Technology, Sydney, has called the destruction of the network "the largest organized vandalism in our nation's history." He says the decisions made in the 50s had a disastrous long-term effect. "When the trams were removed from Sydney, mass transport patronage plummeted and private car usage soared. Our space-saving trams were replaced with ever-more space-hungry cars, causing ever-worsening traffic. That wasn't how the planners saw it at the time. They were strongly swayed by powerful international influences, which chimed with the unstoppable rise of private car ownership in Australia.
The trams are slowly returning, as the city painfully rebuilds a tiny part of its old system. "The construction of 12.8km of light rail from Circular Quay to Randwick and Kingsford will cost $2.7 billion at the latest estimate, has caused untold misery to shops and other businesses in its path and will be almost a year overdue by the time even the first section is open," the report says.

"The new line hardly represents a fundamental shift in Sydney's transport thinking, coming as it does alongside the vast 'congestion-busting' WestConnex freeway project, and further investment in metro rail (a separate light rail link is also under construction at Parramatta). But it is a reminder that the city might have looked very different today but for the decision taken in the 1950s -- and ruthlessly carried out -- to prioritize motor transport."
Facebook

Facebook Says It Was 'Not Our Role' To Remove Fake News During Australian Election (theguardian.com) 138

Facebook has declared it is not "our role to remove content that one side of a political debate considers to be false" in a final, positive, self-assessment of its actions in response to the death tax misinformation circulating on the platform during the May federal election. From a report: In correspondence seen by Guardian Australia, Simon Milner, the Singapore-based vice-president of the social media giant in the Asia-Pacific, tells Labor's outgoing national secretary, Noah Carroll: "I understand that your preference would be for Facebook to remove all content that you believe constitutes misinformation -- which in this instance mean all content that discussed whether or not Labor intends to introduce a death tax -- rather than demote it; however Facebook only removes content that violates our community standards. "We do not agree that is is our role to remove content that one side of a political debate considers to be false," Milner says in the letter sent a month after election day.
Australia

How You Move Your Phone Can Reveal Insights Into Your Personality (sciencealert.com) 56

schwit1 shares a report from ScienceAlert: It may sound strange at first, but a team of researchers in Australia has come up with a method to predict your personality traits using just the accelerometer in your phone. Well, that and your call and messaging activity logs. Also, the system works for some traits better than others. But it's an interesting take on how we may find connections through such seemingly unrelated things. In this case, we start at the Big Five personality traits. These have been used in psychology since the 1980's to help classify five dominant parts of our personalities. These five traits are extraversion (outgoing vs reserved), openness (curious vs cautious), neuroticism (confidence vs nervous), agreeableness (compassionate vs detached) and conscientiousness (organised vs easy-going).

The researchers analysed 52 people's phone habits between March 2010 and July 2011. Each participant was given a phone with sensing and collection software on it, which gave the researchers information on when and how much the phone was moving (accelerometer data), as well as the number and time of day of all calls and messages. The participants were also asked to complete a Big Five survey to score their personalities on the five traits. Then, the team also created a list of features related to the aspects of phone use they measured, that might potentially determine personality traits; for example, physical activity on weekend nights might predict extraversion, or the number of calls one makes might predict agreeableness. After crunching the numbers, the researchers found that some of the phone features really did predict some of the personality traits for the 52 participants.
The phone data best predicted neuroticism, conscientiousness, and extraversion, but had trouble predicting the other two traits, especially openness. "There's also the issue of whether the team were actually looking at personality traits, or if the personality traits could be masked by other factors," the report adds. "For instance, neuroticism may be associated with different regularity of activity intensity in the night, however we cannot rule out many other possible explanations (e.g. neurotic people are more prone to stress and therefore - if this is the case, anyone with different personality traits that are stressed will still exhibit the same results)."

The study has been published in the journal Computer.
Transportation

Lithium Industry Buildup Is Outracing the Electric-Car Boom (bloomberg.com) 204

Lithium miners are bulking up for a booming future when electric cars go mainstream. But speed bumps loom, with prices tumbling on a burst of new production and demand growth slowing in China. From a report: Between mid-2015 and mid-2018, prices for lithium, the soft, silvery-white metal crucial for rechargeable batteries, almost tripled as the world's fleet of electric vehicles hit the 5 million mark, and the auto industry began to fret over the supply of raw materials. That sparked the opening of six lithium mines in Australia since 2017 as companies raced to gain from an evolving technology. But while the EV boom is coming, it isn't here yet. Sales growth is slowing in China, the top market, and the drive to fill the battery supply chain has cooled. The result: A 30% price plunge for lithium that's spurring concern over where the bottom may lie. "The latest EV data did reveal slowing growth, inferring that on top of excess supply, demand is now a problem," Vivienne Lloyd and other analysts at Macquarie Capital wrote in a report this month. "The key interest for investors should be who is likely to survive."
Space

Scientists Stunned By 'City-Killer' Asteroid That Just Missed Earth On July 25 (msn.com) 252

A "city killer" asteroid whizzed past earth Thursday that "would have hit with over 30 times the energy of the atomic blast at Hiroshima," according to one astronomer professor.

Long-time Slashdot reader SonicSpike shared a Washington Post story that begins with a reaction from Alan Duffy, lead scientist at the Royal Institution of Australia: "I was stunned," he said. "This was a true shock."

This asteroid wasn't one that scientists had been tracking, and it had seemingly appeared from "out of nowhere," Michael Brown, a Melbourne-based observational astronomer, told The Washington Post. According to data from NASA, the craggy rock was large, an estimated 57 to 130 metres wide (187 to 427 feet), and moving fast along a path that brought it within about 73,000 kilometres (45,000 miles) of Earth. That's less than one-fifth of the distance to the moon and what Duffy considers "uncomfortably close...."

The asteroid's presence was discovered only earlier this week by separate astronomy teams in Brazil and the United States. Information about its size and path was announced just hours before it shot past Earth, Brown said. "It shook me out my morning complacency," he said. "It's probably the largest asteroid to pass this close to Earth in quite a number of years."

So how did the event almost go unnoticed?

Scientists have spotted 90% of asteroids that more than half a mile wide -- but this asteroid was smaller, faster, and had an unusual orbit.

"It should worry us all, quite frankly," one scientist told the Post. "It's not a Hollywood movie. It is a clear and present danger."

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