Scitke

Author: Marcílio Santos

  • Man Survives 100 Days with Artificial Titanium Heart in Successful Trial

    Man Survives 100 Days with Artificial Titanium Heart in Successful Trial

    An Australian man survived 100 days with an artificial titanium heart—the longest anyone has lived with the device—while waiting for a donor transplant.
    Image Credits:The BiVACOR Total Artificial Heart has a single moving part – a levitated rotor that’s held in place by magnets. 
    BiVACOR

    An Australian man survived 100 days with an artificial titanium heart—the longest anyone has lived with the device—while waiting for a donor transplant.

    The patient, a man in his 40s who chose to remain anonymous, received the implant at St. Vincent’s Hospital in Sydney last November.

    First Patient to Leave Hospital with Artificial Heart Survives Until Transplant

    In February, he made history as the first person worldwide to leave the hospital with the device, which sustained him until a donor heart became available earlier this month.

    St Vincent’s Hospital, Monash University, and BiVACOR—the US-Australian company that developed the device—said Wednesday that the man, who had severe heart failure, was “recovering well.”

    Doctors hail his prolonged survival with the device as a promising sign that artificial hearts could eventually provide a long-term solution for people with heart failure. However, the device is still in trials and has not received approval for widespread use.

    Image Credits:(L-R) Prof Chris Hayward and Dr Paul Jansz worked with Dr Daniel Timms to get his artificial heart invention ready for clinical trials. 
    St Vincent’s Hospital Sydney

    Daniel Timms, Australian bioengineer and founder of BiVACOR, who created the device after losing his father to heart disease, described seeing it succeed as “exhilarating” and the result of decades of work.

    “The BiVACOR team is profoundly thankful to the patient and his family for trusting our Total Artificial Heart,” he stated. “Their courage will help open the door for many more patients to benefit from this life-saving technology.”

    Single Moving Part, Titanium Design

    The BiVACOR Total Artificial Heart (TAH) uses a single moving component—a magnetically levitated rotor—and consists entirely of titanium, eliminating valves or mechanical bearings that could wear out.

    It functions as a replacement for both ventricles, pumping blood to the body and lungs.

    Cardiovascular diseases are the world’s leading cause of death, claiming approximately 18 million lives each year, according to the World Health Organization.

    The long-term goal is to use the device to help more patients who are stuck on donor waiting lists. According to the US Health Department, around 3,500 people received heart transplants in 2024, while roughly 4,400 joined the waiting list that year.

    Professor Chris Hayward of the Victor Chang Cardiac Research Institute said the BiVACOR heart represents “a whole new ball game for heart transplants.”

    A Lifeline for Patients Awaiting Donors

    “Artificial hearts could become an option for patients unable to wait for a donor over the next decade,” Hayward said. He is overseeing the Australian patient’s recovery and played a key role in preparing the device for clinical trials.

    The FDA’s Early Feasibility Study in the US has already tested the BiVACOR heart, successfully implanting it in five patients.

    The first implant in July kept a 58-year-old alive for eight days; four more patients have since received the device in a trial that may expand to 15.

    The Australian implant marks the first in Monash University’s $31 million Artificial Heart Frontiers Program, aiming to develop and commercialize three heart-failure devices.

    Read the original article on: Cnn

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  • A Backpack using Aerospace Technology Helps Patients Regain Balance

    A Backpack using Aerospace Technology Helps Patients Regain Balance

    Aerospace technology is showing potential in helping people with ataxia, a movement disorder that affects balance. Researchers led by Bram Sterke from multiple Dutch universities found that a robotic backpack device allows individuals with ataxia to stand and walk more steadily, reducing the need for mobility aids like walkers.
    Image Credits:Delft University of Technology]

    Aerospace technology is showing potential in helping people with ataxia, a movement disorder that affects balance. Researchers led by Bram Sterke from multiple Dutch universities found that a robotic backpack device allows individuals with ataxia to stand and walk more steadily, reducing the need for mobility aids like walkers.

    The backpack, called Gyropack, uses gyroscopic technology similar to that found in space stations and large satellites to help maintain orientation. Designed for medical use, it contains rotating wheels that resist trunk movements, improving posture and stability.

    Understanding Ataxia and Its Challenges

    Ataxia occurs when the cerebellum does not function properly, leading to coordination and balance difficulties and a higher risk of falling. Professor Jorik Nonnekes of Radboud University noted that many patients—often young—depend on walkers, which can be heavy, awkward, and stigmatizing.

    Image Credits:Bram T. Sterke et al. – 10.1038/s44182-025-00041-4]

    The preliminary study included fourteen patients with moderate to severe ataxia. Each participant completed balance and walking tasks in three scenarios: without the backpack, with the backpack fully activated, and with the gyroscopes spinning but providing no stabilizing effect. This final setup served as a control, as it produced the same sound and vibrations as the active mode.

    The greatest improvements occurred when the gyroscopes were fully engaged. According to Nonnekes, patients were clearly more stable and could, for instance, walk in a straight line much more effectively.

    Even when the gyroscopes were inactive, the backpack still offered benefits, likely because its roughly six-kilogram weight helped steady the upper body.

    Future Improvements and Potential Impact on Daily Life

    The researchers plan to further refine the device by improving usability and reducing its weight and noise. While the backpack is not yet practical for everyday use, Nonnekes believes it could eventually allow people with ataxia to move more independently in daily life—such as attending social gatherings—without relying on walkers, which are often seen as heavy and inconvenient, ultimately enhancing mobility and quality of life.

    Read the original article on: Inovacao Tecnologica

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  • Researchers Determine How Much Faster Time Moves on Mars

    Researchers Determine How Much Faster Time Moves on Mars

    A study by two physicists at the U.S. National Institute of Standards and Technology (NIST) found that, on average, clocks on Mars run about 477 microseconds faster per day than those on Earth.
    Image Credits: A contrast-enhanced global color mosaic of Mars. (ESA/DLR/FU Berlin/G. Michael)

    A study by two physicists at the U.S. National Institute of Standards and Technology (NIST) found that, on average, clocks on Mars run about 477 microseconds faster per day than those on Earth.

    Although this time difference remains extremely small, it can significantly impact efforts to synchronize clocks precisely between Earth, the Moon, and Mars.

    Gravitational Time Dilation

    Einstein’s theory of general relativity shows that gravity affects the flow of time, a phenomenon called gravitational time dilation. From an external perspective, clocks in stronger gravitational fields tick more slowly than clocks in weaker ones.

    Similarly, a second lasts slightly less time in a weaker gravitational field than it does for observers who are under stronger gravitational influence.

    For instance, atomic clocks aboard GPS satellites tick faster than those on Earth because the slightly weaker gravity at medium-Earth orbit, along with time-dilation effects from their motion, results in a combined offset of about 38 microseconds per day.

    Building on this understanding, NIST researchers Neil Ashby and Bijunath Patla have now developed an accurate timekeeping framework specifically for Mars.

    Image Credits: Time is affected by gravity, and gravity is affected by mass. ( J. Wang/NIST)

    Establishing a Lunar Time Standard

    The researchers had earlier created a lunar time standard similar to Earth’s Coordinated Universal Time (UTC), the worldwide benchmark used by scientists and the Deep Space Network (DSN). UTC maintains accuracy to within about 100 picoseconds per day, with a picosecond equaling one trillionth of a second.

    On the Moon’s surface, clocks advance about 56 microseconds faster per day than those on Earth, mainly due to the Moon’s mass and the combined gravitational effects of the Sun, Earth, and Moon.

    However, Patla points out that tracking time on Mars involves more complexity than on the Moon: “A three-body problem is already extremely complicated. Now we’re dealing with four—the Sun, Earth, the Moon, and Mars.”

    Mars’ Weaker Gravity and Reduced Solar Influence

    Mars has far weaker surface gravity than Earth because its mass is only about one-tenth of Earth’s. Based on measurements from Mars missions, Ashby and Patla calculate that gravity on Mars’s surface is roughly five times weaker than Earth’s.

    Moreover, Mars orbits the Sun at a distance of about 1.5 astronomical units (AU), whereas Earth is 1 AU away. Because gravitational force decreases with distance according to the inverse-square law, Mars experiences a weaker gravitational influence from the Sun.

    Mars’s highly eccentric orbit compared to Earth’s further complicates the situation, causing larger variations in the gravitational forces it experiences.

    As a result, although clocks on Mars run about 477 microseconds faster per day than those on Earth on average, this offset fluctuates by roughly 266 microseconds per day over the course of a Martian year.

    Martian Time

    A year on Mars is also significantly longer than one on Earth, since the planet takes 687 days to complete a single orbit around the Sun. In addition, a Martian day lasts longer, with Mars needing about 40 extra minutes to rotate once on its axis compared to Earth.

    Image Credits: The orbits of Mars and Earth, with the seasons in red and blue, respectively. (Areong/Wikimedia Commons/CC BY-SA 4.0)

    Developing accurate and scalable timekeeping systems is essential for future Mars missions, including the landmark moment when humans first set foot on the planet.

    Ashby notes, “It may take decades for rovers to leave tracks on Mars, but we gain valuable insight by addressing the challenges of establishing navigation systems on other planets and moons now.”

    In the meantime, precise off-Earth timekeeping will be critical for supporting communication, positioning, and navigation for upcoming lunar missions by both commercial companies and national space agencies.

    Creating a robust timekeeping infrastructure beyond the Earth-Moon system and establishing a framework for “autonomous interplanetary time synchronization” is therefore a key objective, making this research an important milestone in space exploration.

    Read the original article on: Sciencealert

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  • Scientists Developed Water- and Chemical-Free Self-Cleaning Glass

    Scientists Developed Water- and Chemical-Free Self-Cleaning Glass

    Chinese scientists developed electromagnetic glass that repels dirt without water or chemicals. Detailed in a recent Advanced Science publication, the technology could greatly improve the efficiency of solar panels and building windows.
    Image Credits:diarioeconomico

    Chinese scientists developed electromagnetic glass that repels dirt without water or chemicals. Detailed in a recent Advanced Science publication, the technology could greatly improve the efficiency of solar panels and building windows.

    The glass uses anomalous lateral transport to control charged particle movement precisely.

    The system uses ITO electrodes and a thin PET layer to prevent discharge and protect the glass.

    Design Drives Dust Away Without Reducing Visibility

    As reported by the Zap Aeiou portal, the design actively drives airborne particles off the glass surface without affecting visibility.

    Laboratory testing showed the system could remove up to 95.34 g/m² of contaminants in just ten seconds, while preserving optical clarity, with only a 1.6% decrease in visible light transmission.

    This breakthrough is particularly important for dry regions, where dust buildup can cut solar panel output by as much as 50%.

    Electromagnetic Glass Restores Solar Efficiency in Dusty Conditions

    Using electromagnetic technology, the glass was able to restore up to 94.3% of the energy lost to dirt, maintaining efficiency above 89% even when tested with authentic desert dust.

    Beyond lowering water use for cleaning, the material could remove the need for manual upkeep in difficult locations, leading to reduced costs and less structural degradation.

    Its possible uses include glass building facades and electronic devices that depend on consistently clean surfaces.

    The researchers say the glass retains its optical quality, essential for residential and industrial use.

    Safety is ensured by the dielectric layer, which prevents electrical risks and helps limit long-term material wear.

    Read the original article on: Diario economico

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  • EscaPADE Is Intended to Carry Out Research On Mars

    EscaPADE Is Intended to Carry Out Research On Mars

    On November 13, the Escape and Plasma Acceleration and Dynamic Explorers (EscaPADE) mission was launched into space aboard Blue Origin’s New Glenn rocket.
    Image Credits: NASA

    On November 13, the Escape and Plasma Acceleration and Dynamic Explorers (EscaPADE) mission was launched into space aboard Blue Origin’s New Glenn rocket.

    EscaPADE is a NASA mission made up of two identical spacecraft, each roughly a meter in size, called Blue and Gold. Its mission is to investigate the magnetic and plasma environment surrounding Mars.

    Scientists aim to understand how Mars’s magnetic field interacts with the solar wind—the constant flow of high-energy charged particles from the Sun—and how this interaction impacts the planet’s atmosphere.

    Unlike Earth, where a strong magnetic field deflects most of the solar wind, Mars’s weak and patchy magnetic field is much less effective, allowing the solar wind to directly affect its atmosphere and gradually strip it away over millions of years.

    The overarching goal of the mission is to shed light on the mysterious history of Mars, particularly regarding its water.

    Mars’s magnetic field and atmosphere interact with the solar wind in a complex way.  Image Credits: NASA’s Scientific Visualization Studio, overlay courtesy of Anil Rao/University of Colorado/MAVEN/NASA GSFC

    A Thin or Sparse Atmosphere

    After billions of years of solar wind, Mars now has a very thin atmosphere, roughly 150 times less dense than Earth’s. The surface air pressure is so low that liquid water cannot exist and either evaporates, freezes, or both.

    Today, there are no rivers or lakes on Mars. The widespread sedimentary rocks and clay minerals, formed only in liquid water, indicate the planet once had significant water.

    This suggests Mars once had a thicker atmosphere capable of supporting liquid water, emphasizing the need to understand its loss.

    Sedimentary rocks on Mars photographed by the Perseverance Rover.  Image Credits: NASA/JPL-Caltech

    Detecting and Analyzing Magnetic Fields

    Blue and Gold carry magnetometers to measure Mars’s magnetic field and instruments to detect the energy and density of surrounding ions and plasma.

    Following an 11-month journey to Mars, the spacecraft will conduct a year-long scientific mission, gathering data around the planet.

    Ingeniously, they will share the same orbit for six months, allowing measurements from the same magnetosphere region.

    Afterward, they will move into separate orbits, allowing simultaneous measurements of different and more distant regions of the magnetosphere.

    Plan A, B or C

    That was the original plan. NASA initially planned to launch in October 2024, but delays with the New Glenn rocket postponed the mission.

    Workers inspect the New Glenn booster after landing. Image Credits: Blue Origin

    Because Earth and Mars are constantly in motion, spacecraft can only be launched directly between the two planets during specific times, called launch windows.

    November 2025 isn’t a Mars launch window, but budget risks pushed NASA to adopt an unconventional plan.

    Blue and Gold will remain near the L2 point, 1.5 million km from Earth, until late 2026. Once the Mars launch window opens, they will fly past Earth and continue toward the Red Planet.

    New Glenn is Large

    The second test flight of Blue Origin’s gleaming New Glenn rocket was thrilling.

    Jeff Bezos’s Blue Origin runs New Shepard space tourism missions, flying the rocket shaped like a giant eggplant.

    For the past decade, the company has quietly developed New Glenn, a 100-meter rocket for carrying satellites and spacecraft into orbit and beyond.

    Measuring seven meters in diameter and capable of lofting 45 tonnes into low Earth orbit, New Glenn is wildly overpowered for the two 500kg spacecraft of the EscaPADE mission.

    To truly grasp its scale, imagine it next to a group of people.

    With the booster’s successful landing and planned reuse, Blue Origin aims to become a stronger contender in the commercial satellite launch industry—a market currently led by SpaceX.

    For your Information

    The New Shepard and New Glenn rockets are named after American astronauts. Alan Shepard, the first American in space, flew Freedom 7 on a vertical trajectory like New Shepard. John Glenn was the first American to orbit Earth on Friendship 7, mirroring the mission New Glenn is designed for.

    Read the original article on: Phys.Org

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  • This Durable Phone Lets you Swap Batteries Without Powering off

    This Durable Phone Lets you Swap Batteries Without Powering off

    Ulefone, already known in the rugged smartphone market, is now launching a sub-brand focused on niche innovations for users seeking distinctive devices, kicking off with an impressive flagship.
    Image Credits:The buffer battery grants you 180 seconds within which to swap out the main battery without switching off the phone
    RugOne

    Ulefone, already known in the rugged smartphone market, is now launching a sub-brand focused on niche innovations for users seeking distinctive devices, kicking off with an impressive flagship.

    RugOne launched the Xever 7 Pro last month, building a rugged phone with a unique hot-swappable 5,550 mAh battery.

    True Hot-Swap Power With Built-In Backup Battery

    Yes, hot-swappable. A built-in buffer battery lets you swap batteries for up to three minutes without powering off or interrupting apps.

    It’s a seriously impressive setup. Removable backup batteries let you carry spares, extend the phone’s life, and cut electronic waste.

    RugOne ships the 7 Pro with an extra battery and offers a smart add-on that charges spare cells. The foldable charger powers the phone at 28 W, and also serves as a desk stand and spare battery holder. On top of that, the phone supports reverse charging through its USB-C port, letting you top up accessories like earbuds.

    Image Credits:This charging station can juice up a spare battery as well as the phone, and act as a dock for your desk too
    RugOne

    Beyond its battery features, RugOne built the Xever 7 Pro as serious outdoor gear, giving it IP68/IP69K dust and water resistance, MIL-STD-810H drop protection up to 2 m, and a 230-lumen flashlight with three brightness levels.

    Image Credits:The Xever 7 Pro is waterproof down to 6.5 feet, so you can use it as an action cam underwater
    RugOne

    Thermal Imaging Camera for Night and Heat Detection

    The 7 Pro also brings an extra standout feature.RugOne partnered with FLIR to add a thermal camera that detects 14 °F–842 °F (10 °C–450 °C) heat signatures, useful for spotting wildlife, tracking heat trails, and inspecting gear for fire risks.

    Image Credits:What good is a rugged phone without thermal imaging? This one gets a camera system made in collaboration with FLIR
    RugOne

    It also features a 64-megapixel night-vision camera paired with four infrared LEDs, delivering clear, well-lit images in low light. The 50MP rear camera shoots underwater without extra casing, perfect for outdoor adventures.

    Image Credits:The 64-megapixel night vision camera works in tandem with four infrared LEDs for bright shots in the dark
    RugOne

    Aside from its specialty features, the 7 Pro offers solid but not class-leading hardware that should comfortably handle everyday tasks. It features an octa-core MediaTek Dimensity 7025, 12 GB RAM, 512 GB storage, and a 6.67-inch 120 Hz AMOLED display (2,200 nits) with Gorilla Glass 3, all in a rugged 11.4 oz (325 g) body.

    Software and Accessories

    Out of the box, it runs Android 15 and is slated to receive three additional OS upgrades. In the box, you’ll find a 33-W charger, a spare water-sealed rear panel to change the look, and a holder for the extra battery.

    The Xever 7 Pro is priced at US$659.99, plus shipping, through RugOne’s own store and AliExpress. For those who don’t need the thermal camera, the standard Xever 7 costs $529 and still includes the hot-swappable battery system.

    Read the original article on: Newatlas

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  • A Roadway that Powers your Electric Car as you Drive

    A Roadway that Powers your Electric Car as you Drive

    For a long time, the biggest barrier to making electric cars mainstream wasn’t the motors—it was charging. Long waits, scarce charging stations, and bulky batteries have consistently posed tough challenges. Now, a daring new approach is emerging, already functioning in real-world settings, suggesting that electrified roads may become the next major breakthrough in sustainable transportation.
    Image Credits:gizmodo

    For a long time, the biggest barrier to making electric cars mainstream wasn’t the motors—it was charging. Long waits, scarce charging stations, and bulky batteries have consistently posed tough challenges. Now, a daring new approach is emerging, already functioning in real-world settings, suggesting that electrified roads may become the next major breakthrough in sustainable transportation.

    The setup uses copper coils embedded beneath the pavement, which create a magnetic field that transfers power to vehicles equipped with dedicated receivers. This “Charge as You Drive” system enables cars, buses, and trucks to recharge continuously while moving.

    300 kW On-the-Move Power That Works in Any Weather

    The output reaches 200 kW, with peaks up to 300 kW—comparable to today’s ultra-fast charging stations. A key benefit is that the infrastructure works reliably in rain, ice, or snow, without affecting safety or efficiency. It can also be installed on existing highways, avoiding the need to rebuild entire roads.

    The initial stretch measures just 1.5 kilometers and sits near the A-10 highway on the outskirts of Paris. Although short, it forms part of an ambitious plan to electrify 9,000 kilometers of roads by 2035.

    Early trials used four vehicle types—a truck, van, bus, and passenger car—and each managed to regain energy within minutes of driving, greatly reducing the need for lengthy charging stops. This approach could also allow for smaller batteries, currently one of the most costly and environmentally demanding components of electric vehicles.

    With large-scale adoption, this technology could virtually eliminate one of the major challenges of electric mobility: limited range. Charging would occur seamlessly during travel, removing the need for station lines or meticulous route planning.

    Lighter, Greener Vehicles With Low-Maintenance Infrastructure

    Using smaller batteries would also make vehicles lighter, cheaper to produce, and less dependent on raw materials, while significantly reducing their environmental footprint. Another benefit is the system’s minimal upkeep—its lack of moving parts means it can withstand heavy traffic with high durability.

    France is stepping ahead by developing a fully integrated dynamic charging network, while many other nations remain limited to small, independent pilots. The initiative is about more than advanced engineering—it aims to reshape the act of driving itself, turning charging into an invisible, automatic, and uninterrupted process.

    Rather than simply creating a road that powers vehicles, the project suggests a future in which electric mobility operates smoothly and intuitively, without requiring drivers to change their habits.

    Read the original article on: Gizmodo

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  • In Japan, a New Appliance that Washes People has Hit the Market

    In Japan, a New Appliance that Washes People has Hit the Market

    People stretch out inside the pod, shut the lid, and the machine washes them like laundry—minus the spinning—while music plays in the background.
    Image Credits:After wowing World Expo visitors, a human washing machine is now on sale in Japan, a company spokesperson said Friday.

    People stretch out inside the pod, shut the lid, and the machine washes them like laundry—minus the spinning—while music plays in the background.

    A prototype of the machine, dubbed the “human washer of the future,” drew long queues at the six-month World Expo in Osaka, which concluded in October after attracting more than 27 million visitors.

    Modern Revival of a 1970 Osaka Expo Innovation

    Created by the Japanese company Science, the device is a modernized version of a product showcased during Osaka’s previous Expo in 1970.

    Science representative Sachiko Maekura told AFP that their company president drew inspiration from that exhibit when he was a 10-year-old boy.

    She added that the machine “cleans not only your body but also your spirit,” and it also tracks the user’s heartbeat and other vital signs.

    After a U.S. resort company contacted Science to ask about commercializing the prototype, the firm decided to produce it.

    First Unit Goes to Osaka Hotel

    According to the spokesperson, a hotel in Osaka bought the first unit and plans to offer the service to its guests.

    Other buyers include Yamada Denki—one of Japan’s major consumer electronics chains—which hopes the device will attract more visitors to its stores.

    “Since the uniqueness of the product is part of its charm, we intend to manufacture only about 50 machines,” Maekura explained.

    Local reports say the machine will sell for 60 million yen (around $385,000).

    Read teh original article on: Techxplore

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  • Meteorite Samples Are Time Capsules of The Early Solar System

    Meteorite Samples Are Time Capsules of The Early Solar System

    Scientist Thomas Kruijer uses the thermal ionization mass spectrometry (TIMS) facility at Lawrence Livermore National Laboratory to analyze meteorite samples. Image Credits: Blaise Douros

    When a meteor flashes through the sky, it’s more than a striking sight—it’s nature delivering a time capsule to Earth. Inside are clues to the solar system’s earliest days and the processes that shaped planets, including our own.

    In a recent Space Science Reviews paper—soon to be included as a chapter in an upcoming textbook—Lawrence Livermore National Laboratory (LLNL) scientist Thomas Kruijer and his colleagues explain how meteorites reveal the history of the early solar system.

    “The ultimate goal is to understand how habitable planets like Earth form,” Kruijer said. “How do you create the planet we live on every day, and how does it become capable of supporting life? These questions are still actively debated.”

    How Planetesimals and Meteorites Take Shape

    Researchers do have some well-supported ideas. As the solar system took shape, gas and dust from a giant molecular cloud collapsed into a flattened disk around the young sun. This protoplanetary disk was initially extremely hot but gradually cooled, allowing material to clump together. Gravity pulled dust into increasingly larger aggregates, eventually forming small bodies—about 1 to 100 miles across—known as planetesimals.

    “These planetesimals are considered the building blocks of planets, so they’re crucial to understand,” Kruijer explained. “To learn how Earth formed, we first need to understand how planetesimals formed. In a sense, we’re like detectives or historians, trying to piece together the sequence of events.”

    Meteorites provide the key evidence for this detective work. Many originate in the asteroid belt, a kind of graveyard for some of the earliest bodies in the solar system. By studying these rocks in the lab—a discipline known as cosmochemistry—scientists can determine the ages and compositions of samples more than 4.5 billion years old.

    “It might be a piece no bigger than your fingernail, yet that rock is the oldest thing on Earth,” Kruijer said. “It has remained unchanged for billions of years, preserving information from the time it formed.”

    Kruijer examines the TIMS data that can be used to determine the age and compositions of meteorite samples. Image Credits: Lawrence Livermore National Laboratory

    Meteorite Varieties and their Importance

    The authors explain the different types of meteorites and the insights they offer. Undifferentiated meteorites come from planetesimals that formed without melting, containing calcium-aluminum-rich inclusions—possibly the first solids to condense from the protoplanetary disk—and chondrules, small spheres that can be precisely dated to reveal when the body formed.

    Differentiated meteorites, on the other hand, experienced heating and melting. Heavy materials like iron sank to form a core, while lighter materials rose to create a mantle.

    “That’s especially valuable because Earth also has an iron core, but it’s buried so deep that we can never access it directly,” Kruijer said. “By studying iron meteorites, we can examine the cores of planetary bodies.”

    LLNL houses numerous advanced tools for analyzing meteorite samples, specializing in precise measurements of isotopes, ages, and chemical compositions from tiny samples. For instance, when NASA’s OSIRIS-REx mission returned the first U.S. asteroid sample to Earth, LLNL scientists conducted some of the analyses.

    Advancing Lunar Sample Analysis at LLNL

    The team plans to apply the same techniques to samples from future Artemis lunar missions. In the meantime, they are studying historical lunar samples brought back by the Apollo missions to prepare.

    “We are currently expanding our scientific capabilities in preparation for Artemis,” said Kruijer. “Cosmochemistry is a major focus at LLNL, and we aim to maintain and enhance our ability to study lunar samples.”

    These analytical methods are essential for the Laboratory. Advanced cosmochemistry tools also support nuclear forensics, helping researchers trace the origin and history of nuclear materials.

    Ultimately, Kruijer hopes that meteorite sample analyses will inform large-scale astrophysical models of the protoplanetary disk. He also envisions the paper’s overview of meteorite research becoming a valuable reference for early-career scientists and experts in related fields.

    “You can use AI to get a summary of the latest developments, which gives a general overview,” he said. “But scientific papers involve a lot of nuance and precise terminology. A carefully curated review written by experts who understand these subtleties remains extremely valuable.”

    Read the original article on: Phys.Org

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  • Scientists Confirm Successful Quantum Teleportation Between Photons

    Scientists Confirm Successful Quantum Teleportation Between Photons

    Stuttgart team teleports quantum state between separate photonsThis breakthrough enables quantum information to travel long distances through repeaters made of 'quantum dots' without loss or interference.
    Image Credits: (Eduard Muzhevskyi/iStock/Getty Images Plus)

    Stuttgart team teleports quantum state between separate photonsThis breakthrough enables quantum information to travel long distances through repeaters made of ‘quantum dots’ without loss or interference.

    Unlike standard internet signals, which can be amplified along the way, quantum information requires photons that are nearly identical. Quantum dots—special semiconductors that emit light at extremely precise frequencies—can produce such indistinguishable photons, making them ideal for reliable long-distance quantum communication.

    Quantum Data Teleported Between Photons

    Researchers teleport quantum information between photons from separate quantum dots

    “For the first time anywhere, we have transferred quantum information between photons from two separate quantum dots,” says physicist Peter Michler of the University of Stuttgart.

    Although physicists call these experiments “teleportation,” what is actually being transferred is a quantum state—no photons disappear from one location and reappear in another.

    Maintaining Indistinguishability Is Key for Quantum Teleportation

    For a quantum state to move between two photons, the particles must exist in a delicate, indistinguishable quantum form. Using different photon sources can introduce variations that disrupt the process.

    Quantum dots help control these variations, making it possible to teleport quantum states between completely separate locations.

    The experiments used standard optical fibers, showing a practical path toward a quantum internet.

    Quantum Teleportation Across Dots Extends Range

    “Transferring quantum information between photons from different quantum dots is a crucial step toward bridging greater distances,” says Michler.

    Scientists are exploring how existing infrastructure can support the quantum internet, with its layer crucial for secure, long-distance data. In the current experiment, the optical fiber used was about 10 meters (nearly 33 feet) long.

    The team aims to extend the range and boost the teleportation success rate, now over 70%.

    “These results highlight the maturity of quantum dot technology and represent a key building block for future quantum communication,” the researchers conclude.

    Read the original article on: Science Alert

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