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A Nice Little Cryptography Primer

By itss | 28/06/2021
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Pun Intended.

Category: Technology
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  • Google-Backed Satellites For Wildfire Detection Launch As Smoke Chokes US, Canada
    by BeauHD on 18/07/2026 at 11:00 am

    An anonymous reader quotes a report from Ars Technica: As smoke from hundreds of burning wildfires spread across Canada and the United States, the first three operational satellites in the Google-backed FireSat program successfully launched into orbit. The satellites will begin providing wildfire detection capable of spotting even small fires in the United States, Australia, and Europe before the end of the year. The launch of the microsatellites aboard a SpaceX Falcon 9 rocket from Vandenberg Space Force Base in California on July 7, 2026 marks a transition to "initial operational capability" for the FireSat constellation managed by the nonprofit Earth Fire Alliance. After a three-month testing period, the three satellites will begin actively providing data to fire agencies while covering every fire-prone region on Earth at least twice per day. FireSat represents the first satellite constellation purpose-built for detecting wildfires, including spotting smaller fires that other satellites may miss. The satellites were designed by California-based satellite manufacturer Muon Space and have received over $15 million from Google to support initial deployment. Other notable financial supporters include the Bezos Earth Fund that committed $26 million. Each satellite is equipped with multispectral imaging that can peer through smoke and clouds and detect fires as small as five by five meters -- about 16 by 16 feet. That capability was proven by a FireSat Protoflight satellite that launched in March 2025 and collected more than one million images, while showing it could detect low-intensity blazes invisible to existing satellites. The "early adopter" organizations that will start using FireSat data this year include fire agencies in California, Colorado, Australia, and Portugal. As more satellites launch, the FireSat program aims to provide the latest imagery anywhere in the world on an hourly basis by 2029. Such imagery would eventually become available every 20 minutes once the full constellation of more than 50 satellites is launched by the early 2030s. Detection of small wildfires before they burn out of control could prove extremely helpful. The Earth Fire Alliance has projected that even an hourly revisit rate by the FireSat constellation could help save more than $1 billion in fire damage costs and prevent nearly 22 million tons of carbon emissions, along with protecting 3,500 homes and 1.3 million acres of land. To assist with that capability, Google Research plans to use the company's AI models to compare operational FireSat data with historical images in order to accurately identify very small fires and to inform predictive modeling of wildfires. Google celebrated the launch of the first operational FireSat satellites by describing the event as "another tangible step forward in putting practical AI to work for climate resilience." Read more of this story at Slashdot.

  • Alien World Chemistry Found Inside Meteorite That Struck New Jersey Home
    by BeauHD on 18/07/2026 at 7:00 am

    Researchers say a meteorite that crashed through the roof of a Hillsborough, New Jersey, home in 2024 contains unusually pristine evidence of salty fluids and organic chemistry from near the surface of a primitive asteroid. "A forensic study of the fragments revealed that they contained preserved bits from near the surface of a primitive asteroid, where it experienced concentrated salty fluids -- a process not previously known from this type of protoplanet world," said lead author and meteor astronomer Peter Jenniskens of the SETI Institute and NASA's Ames Research Center in California's Silicon Valley. Phys.org reports: According to paper co-author Mike Zolensky, a meteoriticist at NASA's Johnson Space Center in Houston, analysis of the Hillsborough meteorite found fragments that were more extensively altered by water on the meteorite's parent asteroid than is typically seen in CM2 carbonaceous chondrites. The analysis classified the specimen as a CM1/2 carbonaceous chondrite, an intermediate classification between petrographic types CM1 and CM2. [...] Zolensky and colleague JangMi Han found small salt-rich CM1 fragments within the Hillsborough meteorite, suggesting they originated from a near-surface region of the parent asteroid where liquid water evaporated and concentrated salts. They are now working to identify the salt minerals for comparison with similar phases found among samples returned to Earth from asteroids Ryugu and Bennu. The high concentration of salt in briny fluids can potentially create molecules crucial to life on Earth. Brines allow phosphate to remain in solution and can catalyze chemical reactions between organics and precipitate minerals. "Isotope studies of carbon and nitrogen suggest that primitive carbonaceous chondrites, including CM types, delivered organic matter to the early Earth," said cosmochemist Queenie Chan of Royal Holloway University of London, England, and biogeochemist Nana Ogawa of the Biogeochemistry Research Center at the Japan Agency for Marine-Earth Science and Technology. "The Hillsborough meteorite contained 1.8% by weight of carbon and 0.07% of nitrogen, and had carbon and nitrogen isotopes typical for CM-type meteorites." The meteorite contained a wide variety of soluble organic compounds, and its compositional range confirms that the Hillsborough meteorite was more altered by water than most other CM-type meteorites. "A high fraction of compounds were the product of organic chemistry with minerals," said organic mass spectrometry specialist Phil Schmitt-Kopplin of Technical University Munich. "We do not know if these magnesium organic compounds were contributed by brine chemistry or were simply left over from earlier impact shock processes." In living organisms, organometallic compounds are found in blood and used in photosynthesis. Among the soluble organic compounds were many amino acids, similar to those found in more moderately altered CM2 chondrites. Astrobiologist Danny Glavin of NASA's Goddard Space Flight Center in Greenbelt, Maryland, and his team in Goddard's Astrobiology Analytical Lab concluded that the delivery of amino acids, carboxylic acids and other soluble organic molecules by CM-type bodies may have contributed to the prebiotic organic inventory that preceded the emergence of life on Earth. Their analysis suggests the complex distribution of amino acids observed in the Hillsborough meteorite formed within the parent body, likely assisted by brine fluid chemistry. The findings have been published in the journal Science Advances. Read more of this story at Slashdot.

  • Australia To Put Environmental Brakes On AI Data Centers
    by BeauHD on 18/07/2026 at 3:30 am

    An anonymous reader quotes a report from the New York Times: Australia will require large data centers powering artificial intelligence to generate as much power as they consume, and ensure that creative professionals retain control over work that may be used to train A.I. systems, as the government sets up guardrails over the rapidly growing industry. The announcements on Wednesday in a speech by Prime Minister Anthony Albanese came as Australia draws significant interest from A.I. companies because of its size and the availability of renewable energy, and as resistance to data centers builds in many parts of the United States and Europe. Major A.I. companies have opened offices or announced investments in Australia in recent months. The Australian government is trying to balance capitalizing on the A.I. boom with setting parameters on a fast-changing industry that has sparked backlash over environmental impacts, energy use and lack of contribution to local economies. "Every country on earth is grappling with these challenges right now. Australia will be the first country in the world to bring these issues into a single, national framework," Mr. Albanese said Wednesday, laying out the standards his government will pursue. The details of what exactly the requirements will look like and how they will be enforced remain to be seen, and the government will need to secure the backing of individual states for its plan. The government said it would introduce legislation on the standards early next year, and establish an "Office of A.I." directly reporting to the prime minister to coordinate implementation. The "Australian Standards for A.I." will include a "legal obligation" for companies to ensure they do not drain the power grid and be as water efficient as possible, the government said. Mr. Albanese also said creators of books, music, art or news in Australia should retain control of the price and value of their work when used to train artificial intelligence systems. "Anything less is theft," he said. "No country has got this right yet." Read more of this story at Slashdot.

  • Steve Wozniak's Foundation Partners With Realbotix To Build AI Teacherbot
    by BeauHD on 17/07/2026 at 11:00 pm

    "Apple co-founder Steve Wozniak's Woz Ed foundation is partnering with Realbotix, best known for their RealDoll-branded artificial companions, to deploy AI-powered robotic tutors in classrooms," writes Slashdot reader Hentes. "The doll will serve as a sort of artificial teaching assistant, helping students who get stuck or generating lessons. Students will be assigned an ID code, allowing the robot to provide personalized mentoring." NYS Focus reports: "This deployment in a working school district represents a landmark moment for both AI and humanoid robotics," said Andrew Kiguel, CEO of Realbotix, which is currently building the robot. "[Salamanca City Central School District in Western New York] marks the beginning of a new era where humanoid robots and intelligent AI assistants become standard tools in STEM education." The female robot, named Sally, will have a "lifelike appearance" with silicone skin and long brown hair, Kiguel said in an interview with New York Focus. It will be stationary in a seated position but have a wide range of upper-body movements and facial expressions. [...] Salamanca plans to introduce the robot and avatar in its high school AI and robotics courses, which use curriculum developed by Apple co-founder Steve Wozniak to prepare students for high-demand tech jobs. The district plans to expand it to high school students in other classes if the pilot is successful. Realbotix's classroom robot has drawn scrutiny because the company is connected to RealDoll, the longtime maker of hyperrealistic sex dolls and sex robots. Realbotix acquired RealDoll's parent company in 2024 but says the education-focused operation has separate employees, payroll, facilities, and technology, with plans to formally separate the businesses at the ownership level. The "companion robots" are different from sex robots and intended to address what it's described as a "loneliness epidemic." Kiguel has previously said the company's goal is to produce robots and AI that are "indistinguishable from humans." Read more of this story at Slashdot.

  • Xi Vows to Make AI for All in Debut at China's Top Tech Summit
    by BeauHD on 17/07/2026 at 10:00 pm

    Xi Jinping used his first appearance at China's World AI Conference to promote a vision of low-cost, broadly accessible AI and call for international cooperation rather than technological rivalry. "AI development should not be a solo performance by a single country, but a symphony of international cooperation," he said. Bloomberg reports: His presence at the gathering, attended by scores of tech and government leaders, conveys a potent signal of China's ambitions to dominate a technological sphere with the potential to revolutionize industry and economies -- an effort that's shot to the top of the nation's agenda. Chinese models are winning over companies worldwide, with their share of US firms' AI usage nearing a record 60% on the popular marketplace OpenRouter. Behind the rhetoric, Beijing is grappling with the balance between openness and national security as models grow more capable. Chinese officials recently discussed with companies including Alibaba -- developer of the popular Qwen models -- how to mitigate the security risks posed by their increasingly powerful models, people familiar with the matter said. The talks are early, with no enforcement planned, but restricting foreign access to top models was among the options raised, the people said. Reuters previously reported that Beijing was weighing curbs on overseas access. Earlier today, the Beijing-based AI company "Moonshot" released a massive new model that reset the AI race overnight, immediately vaulting into the top tier of global AI, beating Anthropic's Fable 5 and OpenAI's GPT-5.6 Sol in front-end coding tests. Read more of this story at Slashdot.

  • Billing Software Error Sends Billion-Dollar AWS Estimates
    by BeauHD on 17/07/2026 at 9:00 pm

    AWS says a billing software bug caused some customers to see wildly inflated estimated charges, including reports of accounts showing bills in the billions or even trillions of dollars. The Register reports: An open issue on the AWS Health Dashboard (archived copy at the time of writing) popped up at 1:33 am Pacific time on Friday informing users that Cost Explorer was "reflecting inaccurate estimated billing data." As of writing, the issue is still unresolved despite AWS trying several different things to get it fixed. The company apparently identified the root cause within an hour and a half of beginning its investigation, only describing it as "an issue with unit pricing within the estimated billing computation subsystem." AWS followed up by pausing estimated bill updates, saying customers would continue to see the inflated figures already displayed, but that those estimates would not increase further. "The displayed billing estimates do not reflect actual usage and charges," AWS explained, noting that customers don't need to take any action, like, we imagine, flooding the help portal with tickets telling them what they already know, for instance. "Once the issue has been mitigated, we expect full resolution to take multiple hours as we work through recomputing the estimated billing data," AWS added. After we first published this article, Amazon updated the issue page to indicate that it had identified the root cause and mitigated the underlying issue. The company says that it's begun backfilling data in the Cost Management Console to correct billing numbers, and that all customers should see corrected amounts by Saturday, July 18 at noon pacific time. Read more of this story at Slashdot.

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