The Milky Way’s Black Hole Comes to Light

Astronomers announced today that they had pierced the veil of darkness and dust at the center of our Milky Way galaxy to capture the first picture of “the gentle giant” dwelling there: A supermassive black hole, a trapdoor in space-time through which the equivalent of 4 million suns have been dispatched to eternity, leaving behind only their gravity and a violently bent space-time. From a report: The image, released in six simultaneous news conferences in Washington, D.C., and around the globe, showed a lumpy doughnut of radio emission framing an empty space as dark and silent as death itself. The new image joins the first ever picture of a black hole, produced in 2019 by the same team, which photographed the monster at the heart of the M87. The new image shows new details of the astrophysical violence and gravitational weirdness holding sway at the center of our placid-looking hive of starlight.

Black holes were an unwelcome consequence of Albert Einstein’s general theory of relativity, which attributes gravity to the warping of space and time by matter and energy, much as a mattress sags under a sleeper. Einstein’s insight led to a new conception of the cosmos, in which space-time could quiver, bend, rip, expand, swirl and even disappear forever into the maw of a black hole, an entity with gravity so strong that not even light could escape it. Einstein disapproved of this idea, but the universe is now known to be speckled with black holes. Many are the remains of dead stars that collapsed inward on themselves and just kept going. But there seems to be a black hole at the center of nearly every galaxy, ours included, that can be millions or billions of times as massive than our sun. Astronomers still do not understand how these supermassive black holes have grown so big.

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Cress Seeds Grown in Moon Dust Raise Hopes for Lunar Crops

The prospect of growing crops on the moon has edged a little closer after researchers nurtured plants — some more successfully than others — in lunar soil for the first time. From a report: Scientists planted thale cress seeds in moon dust brought back by three Apollo missions and watched them sprout and grow into fully fledged plants, raising the potential for astronauts to farm off-world crops. But while the plants survived in the lunar soil, or regolith, they fell short of thriving, growing more slowly than cress planted in volcanic ash, developing stunted roots, and showing clear signs of physiological stress.

“We found that plants do indeed grow in lunar regolith, however they respond as if they are growing in a stressful situation,” said Dr Anna-Lisa Paul, a molecular biologist at the University of Florida. Thale cress, or Arabidopsis thaliana, is a small flowering plant related to broccoli, cauliflower and kale. “It’s not especially tasty,” Paul added. The experiments are the first to investigate whether plants can grow in lunar soil and follow an 11-year effort to obtain the rare material. Because the soil is so precious, Nasa loaned only 12g of it — a few teaspoons — to the researchers who conducted the tests. Scientists have long wondered whether the moon could support crops, but with space agencies now planning to return humans to the surface, and potentially build lunar settlements for visitors, the question has become more pressing.

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Blocking Inflammation May Lead To Chronic Pain

Using anti-inflammatory drugs and steroids to relieve pain could increase the chances of developing chronic pain, according to researchers from McGill University and colleagues in Italy. Neuroscience News reports: Their research puts into question conventional practices used to alleviate pain. Normal recovery from a painful injury involves inflammation and blocking that inflammation with drugs could lead to harder-to-treat pain. […] In the study published in Science Translational Medicine, the researchers examined the mechanisms of pain in both humans and mice. They found that neutrophils — a type of white blood cell that helps the body fight infection — play a key role in resolving pain. Experimentally blocking neutrophils in mice prolonged the pain up to ten times the normal duration. Treating the pain with anti-inflammatory drugs and steroids like dexamethasone and diclofenac also produced the same result, although they were effective against pain early on.

These findings are also supported by a separate analysis of 500,000 people in the United Kingdom that showed that those taking anti-inflammatory drugs to treat their pain were more likely to have pain two to ten years later, an effect not seen in people taking acetaminophen or anti-depressants. “Our findings suggest it may be time to reconsider the way we treat acute pain. Luckily pain can be killed in other ways that don’t involve interfering with inflammation,” says Massimo Allegri, a Physician at the Policlinico of Monza Hospital in Italy and Ensemble Hospitalier de la Cote in Switzerland.

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ICE ‘Now Operates As a Domestic Surveillance Agency,’ Think Tank Says

Although it’s supposed to be restricted by surveillance rules at local, state and federal levels, Immigration and Customs Enforcement (ICE) has built up a mass surveillance system that includes details on almost all US residents, according to a report from a major think tank. Engadget reports: Researchers from Georgetown Law’s Center on Privacy and Technology said ICE “now operates as a domestic surveillance agency” and that it was able to bypass regulations in part by purchasing databases from private companies. “Since its founding in 2003, ICE has not only been building its own capacity to use surveillance to carry out deportations but has also played a key role in the federal government’s larger push to amass as much information as possible about all of our lives,” the report’s authors state. “By reaching into the digital records of state and local governments and buying databases with billions of data points from private companies, ICE has created a surveillance infrastructure that enables it to pull detailed dossiers on nearly anyone, seemingly at any time.”

The researchers spent two years looking into ICE to put together the extensive report, which is called “American Dragnet: Data-Driven Deportation in the 21st Century.” They obtained information by filing hundreds of freedom of information requests and scouring more than 100,000 contracts and procurement records. The agency is said to be using data from the Department of Motor Vehicles and utility companies, along with the likes of call records, child welfare records, phone location data, healthcare records and social media posts. ICE is now said to hold driver’s license data for 74 percent of adults and can track the movement of cars in cities that are home to 70 percent of the adult population in the US.

The study shows that ICE, which falls under the Department of Homeland Security, has already used facial recognition technology to search through driver’s license photos of a third of adults in the US. In 2020, the agency signed a deal with Clearview AI to use that company’s controversial technology. In addition, the report states that when 74 percent of adults hook up gas, electricity, phone or internet utilities in a new residence, ICE was able to automatically find out their updated address. The authors wrote that ICE is able to carry out these actions in secret and without warrants. Along with the data it acquired from other government departments, utilities, private companies and third-party data brokers, “the power of algorithmic tools for sorting, matching, searching and analysis has dramatically expanded the scope and regularity of ICE surveillance,” the report states. The agency spent around $2.8 billion on “new surveillance, data collection and data-sharing initiatives,” according to the report. Approximately $569 million was spent on data analsys, including $186.6 million in contracts with Plantir Technologies.

“ICE also spent more than $1.3 billion on geolocation tech during that timeframe and $389 million on telecom interception, which includes tech that helps the agency track someone’s phone calls, emails, social media activity and real-time internet use,” adds Engadget.

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China Wants Its Youth To Stop Giving Livestreamers Money

China’s internet regulator, the Cyberspace Administration of China (CAC), has published guidelines that aim to stop minors from giving tips or other forms of payment to livestreamers, watching after 10pm, or livestreaming themselves. The Register reports: “Website platforms must not develop functional applications that attract minors to tip or induce minors to give ‘gifts.’ If it is found that the website platform violates the aforementioned requirements, measures such as suspending the tipping function and shutting down the live broadcast business will be implemented,” said the recently published Opinions on Regulating Online Live Rewards and Strengthening the Protection of Minors (in Chinese). The opinions were issued jointly by China’s Central Civilization Office, Ministry of Culture and Tourism, State Administration of Radio, Film and Television, and State Internet Information Office. The focus was to “persist in taking the socialist core values as the guide.”

If minors try to circumvent the rules and use adult accounts, the platforms may be responsible for providing refunds. […] Beijing’s qualm with livestreaming and its tech is that the practice can result in physical and mental health issues, as well as create “social problems.” […] There is also concern that teenagers will spend their evenings staying up late online and therefore not have sufficient rest time, hence the 10pm curfew.

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