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NUI Galway part of global team that detected giant collision in space

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The joint study between NUI Galway, MIT and Cambridge used the ALMA telescope to provide a ‘window to the composition of young planets’.

An astronomer from NUI Galway is part of an international team that for the first time found evidence of a planet’s atmosphere being stripped away by a giant collision in a nearby star system.

At just 95 light years from Earth, the young star named HD172555 was witness to a massive collision between two newly-formed planets in its planetary system which are estimated to be about the size of Earth.

Using the Atacama Large Millimeter/submillimeter Array (ALMA) radio telescope in Chile, the joint study between NUI Galway, Massachusetts Institute of Technology (MIT), and Cambridge University, studied the collision and unexpectedly detected a ring of carbon monoxide gas in the dust produced.

“This, for the first time, indicates that impacts can release large amounts of gas as well as dust, and that this gas can survive long enough to be detected,” said Dr Luca Matrà, an advisor for the study and lecturer at NUI Galway’s Centre for Astronomy.

Based on the amount of gas detected, the team was able to estimate that the size of the impact was likely massive and dated it to around 200,000 years ago. “This has the potential to revolutionise our understanding and observability of giant impacts,” Matrà added.

‘Window to composition of planets’

Findings of the study were published yesterday (20 October) in the journal Nature. It solves years of mystery around the unusual composition of dust observed by scientists in the region – indicating the aftermath of a planetary impact like the one that led to the formation of the moon.

The ALMA observatory used for the study consists of 66 radio telescopes working in unison. Ireland gained access to it after joining the European Southern Observatory (ESO) in 2018. In July, it was used in a study to understand how moons are formed.

Carbon monoxide gas was found orbiting in large amounts in the outer terrestrial planet region of the solar system. Matrà said that the amount of gas discovered is 10 to 20pc of the mass of Venus’ atmosphere, which “goes on to show the incredible sensitivity of the obersvations”.

“This puts forward gas observations as a viable detection method of terrestrial planet-forming collisions, and as a window to the composition of young planets,” she said.

Lead author Tajana Schneiderman of MIT said that this the first time scientists have detected the phenomenon of protoplanetary atmosphere being stripped away in a giant impact.

“Everyone is interested in observing a giant impact because we expect them to be common, but we don’t have evidence in a lot of systems for it. Now we have additional insight into these dynamics.”

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South Korea sets reliability standards for Big Tech • The Register

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South Korea’s Ministry of Science and ICT has offered Big Tech some advice on how to make their services suitably resilient, and added an obligation to notify users – in Korean – when they fail.

The guidelines apply to Google, Meta (parent company of Facebook), Netflix, Naver, Kakao and Wavve. All have been told to improve their response to faults by beefing up preemptive error detection and verification systems, and create back up storage systems that enable quick content recovery.

The guidelines offer methods Big Tech can use to measure user loads, then plan accordingly to ensure their services remain available. Uptime requirements are not spelled out.

Big techs is already rather good at resilience. Google literally wrote the book on site reliability engineering.

The guidelines refer to legislation colloquially known as the “Netflix law” which requires major service outages be reported to the Ministry.

That law builds on another enacted in 2020 that made online content service providers responsible for the quality of their streaming services. It was put in place after a number of outages, including one where notifications of the problem were made on the offending company’s social media site – but only in English.

The new regulations follow South Korean telcos’ recent attempts to have platforms that guzzle their bandwidth pay for the privilege. Mobile carrier SK Broadband took legal action in October of this year, demanding Netflix pitch in some cash for the amount of bandwidth that streaming shows – such as Squid Game – consume.

In response, Netflix pointed at its own free content delivery network, Open Connect, which helps carriers to reduce traffic. Netflix then accused SK Broadband of trying to double up on profits by collecting fees from consumers and content providers at the same time.

For the record, Naver and Kakao pay carriers, while Apple TV+ and Disney+ have at the very least given lip service to the idea.

Korea isn’t the only place where telcos have noticed Big Tech taking up more than its fair share of bandwidth. The European Telecommunications Network Operators’ Association (ETNO) published a letter from ten telco CEOs asking that larger platforms “contribute fairly to network costs”. ®

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Twitter acquires Slack competitor Quill to improve its messaging services

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As part of the acquisition, Quill will be shutting down at the end of the week as its team joins the social media company.

Twitter has acquired the messaging platform Quill, seen as a potential competitor to Slack, in order to improve its messaging tools and services.

Quill announced that it will be shutting down at the end of the week as its team joins the social media company to continue its original goal “to make online communication more thoughtful, and more effective, for everyone”.

The purchase of Quill could be linked to Twitter’s new strategy to reduce its reliance on ad revenue and attract paying subscribers.

Twitter’s general manager for core tech, Nick Caldwell, described Quill as a “fresher, more deliberate way to communicate. We’re bringing their experience and creativity to Twitter as we work to make messaging tools like DMs a more useful and expressive way people can have conversations on the service”.

Users of Quill have until 11 December to export their team message history before the servers are fully shut down at 1pm PST (9pm Irish time). The announcement has instructions for users who wish to import their chat history into Slack and states that all active teams will be issued full refunds.

The team thanked its users and said: “We can’t wait to show you what we’ll be working on next.”

Quill was launched in February with the goal to remove the overwhelming aspects of other messaging services and give users a more deliberate and focused form of online chat.

In an online post, Quill creator Ludwig Pettersson said: “We started Quill to increase the quality of human communication. Excited to keep doing just that, at Twitter.”

The company became a potential competitor for Slack, which was bought by Salesforce at the end of 2020 for $27.7bn. The goal of that acquisition was to combine Salesforce’s CRM platform with Slack’s communications tools to create a unified service tailored to digital-led teams around the world.

Last week, Salesforce announced the promotion of Bret Taylor to vice-chair and co-CEO, just days after he was appointed independent chair of Twitter after CEO Jack Dorsey stepped down.

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Australians’ 2021 Google searches: Covid comes out on top with sport our favoured non-pandemic distraction | Google

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The Covid-19 pandemic once again dominated internet searches in Australia this year, as lockdowns gripped the two largest states, and people sought vaccines.

Google has compiled data on the most popular search terms from the previous 12 months, which showed Covid’s dominance in Australia was challenged by people looking for an escape in sports. The NBA, AFL, cricket, NRL, football, Wimbledon and the Olympics took out the top spots for most searched sport in Australia in 2021.

The Covid situation in New South Wales dominated news-related searches, with the Delta outbreak forcing the state into the longest continuous lockdown in 2021. Victorians, having endured the most number of days in lockdown since the pandemic started, did not appear to seek out information about the Covid situation in their own state nearly as much, with “coronavirus Victoria” coming in fifth in news-related searches, even behind Queensland at number three.

For the second year in a row, people Googled “how to make face masks” more than any other DIY-related search. As residents in NSW, Victoria and the ACT endured extended lockdowns, at-home activities like making your own candles, playdough, paper planes, and chatterboxes soared.

As Australia’s vaccination “strollout” gathered pace in the second half of 2021, people searched how to get their vaccination certificates, how to book their Covid vaccination, how to link their Medicare to myGov, and how to enter the Million Dollar Vax campaign.

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The shocking disappearance of West Australian four-year-old Cleo Smith and the dramatic rescue over two weeks later was the second biggest news event searched on Google by Australians. The ongoing search for missing toddler William Tyrrell came in sixth.

The former federal attorney general Christian Porter’s name dominated Google search trends in the days leading up to a press conference where he outed himself as the unnamed minister in an ABC report about an alleged historical rape. He vehemently denies the allegations. In his now-settled defamation suit against the ABC, lawyers for Porter raised that after the report searches of his name “increased significantly and much more so than any other senior male cabinet members”.

The former minister, who announced last week he would not recontest his WA seat of Pearce at the 2022 federal election, appears eighth in the 2021 list of news-related searches.

Porter was the fourth most-searched person overall in Australia, behind Cleo Smith, Ash Barty, and William Tyrell. The new NSW premier, Dominic Perrottet, came in sixth.

Bringing up the rear of news searches was the moment that shook Melbourne – literally – the 5.9 magnitude earthquake that hit Victoria in September.

Interest in all things cryptocurrency was also reflected in Australian searches with cryptocurrency exchange Coinspot the ninth most searched term, and people searched how to buy Dogecoin.

Prince Philip was the most searched among those who died in 2021, followed by US woman Gabby Petito, and Australian entertainment giant Bert Newton.

Thanks to Jaden Smith and Britney Spears, people were searching for the meaning of the word “emancipated” more than any other word in 2021, followed by “insurrection” after the events at the US Capitol on 6 January, then it was “gaslighting”, Naidoc and NFT.

Despite emerging late in the year, Omicron came in sixth as people looked up the meaning of the latest Covid-19 variant of concern.

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