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      A star has been destroyed by a wandering supermassive black hole

      news.movim.eu / ArsTechnica • 9 May • 1 minute

    Back in 2024, a system set up to identify objects that suddenly brighten found something unusual. Unfortunately, the automated system that was supposed to identify it couldn't figure out what it was looking at. Now, about a year later, we know it's the first tidal disruption event—meaning a star being ripped apart by a supermassive black hole—identified at visual wavelengths. It's also a rather unusual one, in that the supermassive black hole in question does not reside at the center of its galaxy. Instead, there's an even more massive object there, which is feeding on matter at the same time.

    A mystery object

    The object, now called AT2024tvd, was identified by the Zwicky Transient Facility , which is set up to scan the entire northern sky over a period of just two days, after which it repeats the process. Combined with software that scans the data for changes, these repeated exposures allow the system to identify objects that suddenly brighten (or, potentially, anything that suddenly goes dark). Among the events it can identify are tidal disruption events, where a star gets spaghettified by the enormous gravity of a supermassive black hole.

    Normally, supermassive black holes live at the center of galaxies. So, the software that does the scanning will only flag something as a potential tidal disruption event if it coincides with the presence of a previous light source at the same location. And that wasn't the case with AT2024tvd, which appeared to be over 2,500 light years from the center of the galaxy. As a result, the software didn't flag it as a potential tidal disruption event; people didn't figure out what it was until they looked more closely at it.

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      Rocket Report: Rocket Lab to demo cargo delivery; America’s new ICBM in trouble

      news.movim.eu / ArsTechnica • 9 May • 1 minute

    Welcome to Edition 7.43 of the Rocket Report! There's been a lot of recent news in hypersonic testing. We cover some of that in this week's newsletter, but it's just a taste of the US military's appetite for fielding its own hypersonic weapons, and conversely, the Pentagon's emphasis on the detection and destruction of an enemy's hypersonic missiles. China has already declared its first hypersonic weapons operational, and Russia claims to have them, too. Now, the Pentagon is finally close to placing hypersonic missiles with combat units. Many US rocket companies believe the hypersonics sector is a lucrative business. Some companies have enough confidence in this emerging market —or lack of faith in the traditional space launch market —to pivot entirely toward hypersonics. I'm interested in seeing if their bets pay off.

    As always, we welcome reader submissions . If you don't want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets, as well as a quick look ahead at the next three launches on the calendar.

    Stratolaunch tests reusable hypersonic rocket plane. Stratolaunch has finally found a use for the world's largest airplane. Twice in the last five months, the company launched a hypersonic vehicle over the Pacific Ocean, accelerated it to more than five times the speed of sound, and autonomously landed at Vandenberg Space Force Base in California, Ars reports . Stratolaunch used the same Talon-A vehicle for both flights, demonstrating its reusability, a characteristic that sets it apart from competitors. Zachary Krevor, Stratolaunch's president and CEO, said his team aims to ramp up to monthly flights by the end of the year.

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      New RSV vaccine, treatment linked to dramatic fall in baby hospitalizations

      news.movim.eu / ArsTechnica • 8 May • 1 minute

    Far fewer babies went to the hospital struggling to breathe from RSV, a severe respiratory infection, after the debut of a new vaccine and treatment this season, according to an analysis published today by the Centers for Disease Control and Prevention .

    RSV, or respiratory syncytial (sin-SISH-uhl) virus, is the leading cause of hospitalization for infants in the US. An estimated 58,000–80,000 children younger than 5 years old are hospitalized each year. Newborns—babies between 0 and 2 months—are the most at risk of being hospitalized with RSV. The virus circulates seasonally, typically rising in the fall and peaking in the winter, like many other respiratory infections.

    But the 2024–2025 season was different—there were two new ways to protect against the infection. One is a maternal vaccine, Pfizer's Abrysvo, which is given to pregnant people when their third trimester aligns with RSV season (generally September through January). Maternal antibodies generated from the vaccination pass to the fetus in the uterus and can protect a newborn in the first few months of life. The other new protection against RSV is a long-acting monoclonal antibody treatment, nirsevimab, which is given to babies under 8 months old as they enter or are born into their first RSV season and may not be protected by maternal antibodies.

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      A Soviet-era spacecraft built to land on Venus is falling to Earth instead

      news.movim.eu / ArsTechnica • 8 May

    Kosmos 482, a Soviet-era spacecraft shrouded in Cold War secrecy, will reenter the Earth's atmosphere in the next few days after misfiring on a journey to Venus more than 50 years ago.

    On average, a piece of space junk the size of Kosmos 482, with a mass of about a half-ton, falls into the atmosphere about once per week. What's different this time is that Kosmos 482 was designed to land on Venus, with a titanium heat shield built to withstand scorching temperatures, and structures engineered to survive atmospheric pressures nearly 100 times higher than Earth's.

    So, there's a good chance the spacecraft will survive the extreme forces it encounters during its plunge through the atmosphere. Typically, space debris breaks apart and burns up during reentry, with only a small fraction of material reaching the Earth's surface. The European Space Agency, one of several institutions that track space debris, says Kosmos 482 is "highly likely" to reach Earth's surface in one piece.

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      AI use damages professional reputation, study suggests

      news.movim.eu / ArsTechnica • 8 May

    Using AI can be a double-edged sword, according to new research from Duke University. While generative AI tools may boost productivity for some, they might also secretly damage your professional reputation.

    On Thursday, the Proceedings of the National Academy of Sciences (PNAS) published a study showing that employees who use AI tools like ChatGPT , Claude , and Gemini at work face negative judgments about their competence and motivation from colleagues and managers.

    "Our findings reveal a dilemma for people considering adopting AI tools: Although AI can enhance productivity, its use carries social costs," write researchers Jessica A. Reif , Richard P. Larrick , and Jack B. Soll of Duke's Fuqua School of Business.

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      Fidji Simo joins OpenAI as new CEO of Applications

      news.movim.eu / ArsTechnica • 8 May

    On Wednesday, OpenAI announced that Instacart CEO Fidji Simo will join the maker of ChatGPT as "CEO of Applications" later this year, according to a company blog post. Simo, who has served on the company's board since March 2024, will oversee business and operational teams while continuing to report directly to Altman in the newly created role. Altman will remain the primary CEO of OpenAI.

    According to Reuters , Simo spent a decade at Meta, including a stint serving as the head of Facebook from 2019 to 2021. She also currently sits on the board of e-commerce services site Shopify.

    The announcement came earlier than planned due to what Altman described as "a leak" that "accelerated our timeline." At OpenAI, Simo will manage what Altman called "traditional company functions" as the organization enters its "next phase of growth." The applications category at OpenAI includes products like ChatGPT, the popular AI assistant.

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      DOGE software engineer’s computer infected by info-stealing malware

      news.movim.eu / ArsTechnica • 8 May • 1 minute

    Login credentials belonging to an employee at both the Cybersecurity and Infrastructure Security Agency and the Department of Government Efficiency have appeared in multiple public leaks from info-stealer malware, a strong indication that devices belonging to him have been hacked in recent years.

    Kyle Schutt is a 30-something-year-old software engineer who, according to Dropsite News , gained access in February to a “core financial management system” belonging to the Federal Emergency Management Agency. As an employee of DOGE, Schutt accessed FEMA’s proprietary software for managing both disaster and non-disaster funding grants. Under his role at CISA, he likely is privy to sensitive information regarding the security of civilian federal government networks and critical infrastructure throughout the US.

    A steady stream of published credentials

    According to journalist Micah Lee , user names and passwords for logging in to various accounts belonging to Schutt have been published at least four times since 2023 in logs from stealer malware. Stealer malware typically infects devices through trojanized apps, phishing, or software exploits. Besides pilfering login credentials, stealers can also log all keystrokes and capture or record screen output. The data is then sent to the attacker and, occasionally after that, can make its way into public credential dumps.

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      Trump just made it much harder to track the nation’s worst weather disasters

      news.movim.eu / ArsTechnica • 8 May

    The Trump administration's steep staff cuts at the National Oceanic and Atmospheric Administration (NOAA) triggered shutdowns of several climate-related programs Thursday.

    Perhaps most notably, the NOAA announced it would be shuttering the "billion-dollar weather and climate disasters" database for vague reasons. Since 1980, the database made it possible to track the growing costs of the nation's most devastating weather events, critically pooling various sources of private data that have long been less accessible to the public.

    In that time, 403 weather and climate disasters in the US triggered more than $2.945 trillion in costs, and NOAA notes that's a conservative estimate. Considering that CNN noted the average number of disasters in the past five years jumped from nine annually to 24, shutting down the database could leave communities in the dark on costs of emerging threats. All the NOAA can likely say is to continue looking at the historic data to keep up with trends.

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      Senate passes “cruel” Republican plan to block Wi-Fi hotspots for schoolkids

      news.movim.eu / ArsTechnica • 8 May

    The US Senate today voted along party lines to kill a Federal Communications Commission program to distribute Wi-Fi hotspots to schoolchildren, with Democrats saying the Republican-led vote will make it harder for kids without reliable Internet access to complete their homework.

    The Senate approved a Congressional Review Act (CRA) resolution to nullify the hotspot rule, which was issued by the Federal Communications Commission in July 2024 under then-Chairwoman Jessica Rosenworcel. The program would be eliminated if the House version passes and President Trump signs the joint resolution of disapproval.

    Senator Ted Cruz (R-Texas) announced the plan in January, saying the FCC program would "imped[e] parents' ability to decide what their kids see by subsidizing unsupervised access to inappropriate content." He also alleged that the hotspot program would shift control of Internet access from parents to schools and thus "heightens the risk of censoring kids' exposure to conservative viewpoints."

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