Science-&-Innovation
NASA powers down two instruments on twin Voyager spacecraft to save power
NASA is switching off two science instruments on its long-running twin Voyager spacecraft to save power.
The space agency said Wednesday an instrument on Voyager 2 that measures charged particles and cosmic rays will shut off later this month. Last week, NASA powered down an instrument on Voyager 1 designed to study cosmic rays.
The energy-saving moves were necessary to extend their missions, Voyager project manager Suzanne Dodd at the NASA Jet Propulsion Laboratory said in a statement.
The twin spacecraft launched in 1977 and are currently in interstellar space, or the space between stars. Voyager 1 discovered a thin ring around Jupiter and several of Saturn’s moons, and Voyager 2 is the only spacecraft to visit Uranus and Neptune.
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Each spacecraft still has three instruments apiece to study the sun's protective bubble and the swath of space beyond.
Voyager 1 is over 15 billion miles (24.14 billion kilometers) from Earth and Voyager 2 is over 13 billion miles (20.92 billion kilometers) away.
9 hours ago
Chinese researchers use Earth science satellite to monitor offshore oil, gas platforms
Chinese researchers have unveiled a novel application of the Earth science satellite SDGSAT-1 for observing offshore oil and gas platforms.
The study, led by researchers from the Aerospace Information Research Institute of the Chinese Academy of Sciences (CAS), was recently published in the International Journal of Digital Earth.
As global demand for oil rises and the industry moves toward decarbonization, tailored monitoring of oil and gas platforms has become increasingly necessary. However, tracking these platforms in vast and dynamic oceanic regions has long posed challenges.
The researchers used the SDGSAT-1's Glimmer Imager and Thermal Infrared Spectrometer to track gas flaring activities in the South China Sea. This innovative approach enabled them to map platform operations with greater precision.
Chinese scientists develop new AI model for cyclone forecast
The findings helped researchers identify 113 oil and gas platforms amidst the complex maritime environment of islands, vessels, and other offshore facilities in the region.
"These findings highlight the competence of SDGSAT-1 in tracking the operational status of oil and gas platforms," according to the study.
Launched on Nov. 5, 2021, the SDGSAT-1 is the world's first Earth science satellite dedicated to supporting the United Nations' 2030 Agenda for Sustainable Development.
Developed by the CAS, the satellite provides crucial space-based data to assess human-environment interactions and promote sustainable development.
25 days ago
Chinese scientists develop new AI model for cyclone forecast
Chinese scientists have developed a new artificial intelligence (AI) method to forecast the rapid intensification of a tropical cyclone, shedding new light on improving global disaster preparedness.
Recently, researchers from the Institute of Oceanology at the Chinese Academy of Sciences published this study in the journal, Proceedings of the National Academy of Sciences.
The rapid intensification of a tropical cyclone, which refers to a dramatic increase in the intensity of a tropical storm over a short period, remains one of the most challenging weather phenomena to forecast because of its unpredictable and destructive nature.
According to the study, traditional forecasting methods, such as numerical weather prediction and statistical approaches, often fail to consider the complex environmental and structural factors driving rapid intensification. While AI has been explored to improve rapid intensification prediction, most AI techniques have struggled with high false alarm rates and limited reliability.
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To address this issue, the researchers have developed a new AI model that combines satellite, atmospheric and oceanic data. When tested on data from the tropical cyclone periods in the Northwest Pacific between 2020 and 2021, the new method achieved an accuracy of 92.3 percent and reduced false alarms to 8.9 percent.
The new method improved accuracy by nearly 12 percent compared to existing techniques and boasted a 3-times reduction in false alarms, representing a significant advancement in forecasting, said the study.
"This study addresses the challenges of low accuracy and high false alarm rates in rapid intensification forecasting," said Li Xiaofeng, the study's corresponding author.
"Our method enhances understanding of these extreme events and supports better defenses against their devastating impacts," Li added.
1 month ago
Meta set to introduce Ray-Ban smart glasses in 2025
Meta is gearing up to enhance its popular Ray-Ban smart glasses with a significant technological leap.
According to a report by the Financial Times, the upcoming version, set to be released in 2025, will feature an integrated virtual display. This development positions Meta to strengthen its foothold in a market that is attracting major players like Samsung and Google.
A New Era for Ray-Ban Smart Glasses
Since their initial launch, Ray-Ban Meta smart glasses have gained widespread acclaim for seamlessly blending cutting-edge technology with timeless style. Equipped with voice assistant capabilities, users can send messages, make calls, and manage various functions hands-free.
Built-in speakers allow users to hear notifications and messages without headphones, while touch-sensitive controls on the frame enable effortless media playback and call management.
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The integration of a display marks a substantial upgrade to the existing features. Currently, the glasses connect to smartphones via Bluetooth, providing audio-based notifications and interactions. Some models even include a discreet camera for photo and video capture.
However, the lack of a visual display has been a limitation — one that the third-generation glasses are poised to overcome.
What to Expect from the 2025 Model
The addition of a display will transform the user experience. Beyond showing notifications and interacting with Meta’s AI, the display could offer navigation directions, fitness tracking data, and other real-time information.
This hands-free functionality would cater to both tech enthusiasts and those seeking practical applications in daily life.
The new model is expected to launch in the latter half of 2025, according to Financial Times. By integrating advanced AI features and an interactive display, Meta aims to maintain its competitive edge as Samsung and Google prepare to enter the smart glasses market with AI-powered innovations.
Enter Meta’s Orion AR Glasses
Meta’s ambitions extend beyond Ray-Ban smart glasses. In September 2024, the company unveiled Orion, a cutting-edge AR device likened to the fictional face computers seen in Marvel’s Iron Man.
Orion boasts the largest field of view in the smallest AR glasses form factor to date, capable of performing tasks such as multitasking windows, immersive entertainment, and life-size holographic interactions.
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This device represents a leap forward in augmented reality, merging digital content with the physical world in a lightweight, versatile design. Meta envisions Orion as a tool for both personal and professional use, enabling remote face-to-face connections. While currently in the prototype stage, Orion is slated for commercial release in 2027.
Rising Competition in the Smart Glasses Market
For years, Meta’s Ray-Ban smart glasses faced little competition. However, the landscape is changing as tech giants like Samsung and Google gear up to launch their own products. These companies are likely to incorporate advanced AI capabilities, further intensifying the competition.
By advancing the Ray-Ban smart glasses and preparing Orion for the market, Meta is clearly committed to staying ahead in the race. The integration of display technology into the Ray-Ban glasses represents a critical step in this strategy, ensuring that Meta continues to lead the way in wearable tech innovation.
As the world moves closer to a future dominated by augmented reality, Meta’s advancements signal exciting times ahead for both consumers and the tech industry.
Source: With inputs from Financial Times and India Today
2 months ago
AI will eavesdrop on world's wildest places to track and help protect endangered wildlife
The endangered Geoffrey’s spider monkeys that dangle high in the rainforest canopy are elusive and hard for scientists to track.
So biologist Jenna Lawson hid 350 audio monitors in trees across Costa Rica's lush Osa Peninsula to spy on them.
The devices recorded the sounds of the forest and surrounding countryside for a week, collecting so much data that Lawson could have spent years listening to it all.
Instead, she fed it into artificial intelligence systems trained to instantly recognize spider monkey calls and detect where the animals traveled. One of the world’s largest acoustic wildlife studies when Lawson began the project in 2021, it revealed troubling findings about the health of a treasured wildlife refuge.
More of this AI-assisted wildlife surveillance is “urgently needed” as some 28% of all plant and animal species are now at risk of extinction, according to a paper published in the academic journal Science this summer. Researchers from Dutch and Danish universities showed that machine-learning techniques can “handle huge amounts of data and uncover sound patterns, allowing for faster, cheaper, and better ecological studies” that can aid in biodiversity conservation. But many technical challenges remain.
Tech giant Microsoft's philanthropic AI for Good Lab announced this month it is hoping to answer some of those technical challenges with a new kind of hardware and computing system for eavesdropping on the planet's wildest places.
“Those remote places are also the most important places on the Earth from a biodiversity perspective,” said Microsoft's chief data scientist, Juan Lavista Ferres, in an interview last week by video call from Colombia, where a research team was preparing to test the new approach.
Powered by the sun and energy-efficient AI computer chips, the devices can run for years rather than weeks without human intervention. And they can regularly transmit their data online via low-Earth orbit satellites. It's called Sparrow, short for Solar-Powered Acoustic and Remote Recording Observation Watch.
Pablo Arbelaez, director of an AI-focused research center at the University of the Andes, said a first Sparrow test will happen in a jungle preserve along Colombia's largest river, the Magdalena. Eventually, the researchers hope to get a better idea of how deforestation — and efforts to reverse it — is affecting the population behavior of jaguars, blue-beaked paujil birds, spider monkeys and other endangered species.
Another project closer to Microsoft headquarters will monitor forests in Washington state's Cascade Mountains. By late 2025, Lavista Ferres plans to have devices on all continents, from remote corners of the Amazon rainforest to gorilla habitats of the Democratic Republic of the Congo. That will then be “open-sourced” to make it accessible to a wide body of researchers in real time, but with measures to obscure sensitive location data.
“What we don’t want is these devices to ever be used for poachers to understand where the animals are,” Lavista Ferres said.
It was a concern about encroachments on Costa Rican spider monkey habitat that led Lawson, then at Imperial College London, to undertake her ambitious bio-acoustic study three years ago. She persuaded landowners to let her place recording devices on their properties outside Corcovado National Park, a jewel of Costa Rica's decades-long efforts to preserve biodiversity by encouraging wildlife tourism.
“She basically realized the spider monkey is in a really critical situation,” said local environmentalist and bug scientist Jim Córdoba-Alfaro. On a follow-up visit last year, he and Lawson trekked across a private reserve with an Associated Press reporter to observe the monkeys and check on the audio monitors.
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Compared to the charismatic capuchin monkey and the notoriously loud howler monkey -- both commonly seen or heard throughout Costa Rica — spider monkeys are far more wary of humans and the changes they bring.
“They’re the most sensitive of the primates that we have here,” said Lawson. “The spider monkey would be the first animal to leave when there’s signs of trouble. They would be the last animal to come back once forests are restored because they need mature secondary and primary forest to be able to survive.”
The Royal Society of London in March 2023 published Lawson's findings of what the audio monitors revealed: the spider monkeys weren't going anywhere near paved roads or the plantations harvesting palm oil and teak wood that bisect the region's protected national parks. That meant government-designated wildlife corridors meant to extend their range through and beyond the Osa Peninsula were not working as well as designed. She came back to present those conclusions to local officials.
After hours of searching, a troop of spider monkeys appeared — peering down at the humans who found them. Within moments, they were on their way again — extending their lanky arms and prehensile tails to grasp at trees and propel themselves across the canopy with spidery acrobatics.
Unattended acoustic detection of animal sounds is valuable not just in rainforests but in a wide variety of ecosystems, according to the Science paper published earlier this year. For example, it could help sailors avoid colliding their ships with large baleen whales heard to be passing through a shipping channel.
Lavista Ferres said there are still numerous challenges to overcome, from humidity that can fray jungle monitors to elephants in African savannas unintentionally knocking them off a tree.
Lawson said using the audio monitors to capture the spider monkey's distinctive whinny enables biologists to study a larger area at lower cost, but also provides a truer account of how the monkeys behave without scientists following them around.
“We’re reducing our influence on their behavior,” she said. ”And also — they don’t want us here."
2 months ago
Apple’s new feature helps travellers track lost luggage
Apple has unveiled a new feature, Share Item Location, which lets iPhone users securely share the location of AirTags with third parties, such as airlines, to aid in recovering lost luggage.
This feature, part of Apple’s iOS 18.2 public beta and set to become widely available soon, is designed to enhance the efficiency of baggage tracking during air travel, offering travellers greater peace of mind.
How the Feature Works
Using the Find My app on an iPhone, iPad, or Mac, users can now create a secure link to share the location of their AirTag, visible on an interactive map.
The link, valid for seven days and equipped with end-to-end encryption, enables airline personnel to view real-time updates of the item’s whereabouts.
For security, the link expires automatically after the bag is located, and the user can disable it at any time. Each map update includes timestamps, ensuring accuracy for both the traveller and airline.
Adoption by Major Airlines
This feature is already being integrated by major airlines like Delta, United, British Airways, and Singapore Airlines, with over 15 carriers planning to adopt it by the close of 2024. By implementing Apple’s AirTag location data into their customer service processes, airlines are expected to significantly improve the way they handle delayed or misplaced luggage.
Integration with Global Systems
SITA, a leader in air transport technology, will integrate Apple’s Share Item Location feature into its WorldTracer system, which is utilised by over 500 airlines worldwide. This partnership aims to streamline the luggage-tracking process, benefitting both travellers and airline staff by providing quicker, more accurate information on lost baggage.
Commitment to Data Privacy
Privacy remains at the core of Apple’s approach. The Find My network is designed with strict data security, ensuring end-to-end encryption and user anonymity. Only authorised airline representatives can access the shared location data, which Apple believes will foster trust among users.
Bringing Confidence to Travellers
With this latest feature, Apple is addressing a common source of frustration for travellers. By offering a simple and secure way to share an item’s location, Apple’s Share Item Location feature represents a significant step forward in utilising technology to support seamless travel experiences.
3 months ago
Hong Kong discovers dinosaur fossils for the first time.
Officials in Hong Kong said Wednesday they have discovered dinosaur fossils in the city for the first time on a remote, uninhabited island that's part of a geopark.
Experts have initially confirmed the fossils were part of a large dinosaur from the Cretaceous period, about 145 million to 66 million years ago, the government said in a statement. They will need to conduct further studies to confirm the species of the dinosaur.
Experts speculate that the dinosaur was likely buried by sand and gravel after its death before it was later washed to the surface by a large flood, and subsequently buried again at the discovery site, it said.
The government said the conservation department in March informed its Antiquities and Monuments Office about a sedimentary rock containing substances suspected to be vertebrate fossils. The rock was found on Port Island in the Hong Kong UNESCO Global Geopark in the city's northeastern waters.
The government said it commissioned mainland Chinese experts to conduct field investigations.
Port Island is closed to the public from Wednesday until further notice to facilitate future investigations and excavations.
The fossils will be on display at the Hong Kong Heritage Discovery Centre in Tsim Sha Tsui, one of the city's popular shopping districts, starting on Friday. The government is also planning to open a temporary workshop for the public to observe experts' preparation of fossil specimens by the end of 2024.
4 months ago
Will AI replace doctors who read X-rays, or just make them better than ever?
How good would an algorithm have to be to take over your job?
It’s a new question for many workers amid the rise of ChatGPT and other AI programs that can hold conversations, write stories and even generate songs and images within seconds.
For doctors who review scans to spot cancer and other diseases, however, AI has loomed for about a decade as more algorithms promise to improve accuracy, speed up work and, in some cases, take over entire parts of the job. Predictions have ranged from doomsday scenarios in which AI fully replaces radiologists, to sunny futures in which it frees them to focus on the most rewarding aspects of their work.
That tension reflects how AI is rolling out across heath care. Beyond the technology itself, much depends upon the willingness of doctors to put their trust — and their patients’ health — in the hands of increasingly sophisticated algorithms that few understand.
Even within the field, opinions differ on how much radiologists should be embracing the technology.
“Some of the AI techniques are so good, frankly, I think we should be doing them now,” said Dr. Ronald Summers, a radiologist and AI researcher at the National Institutes of Health. “Why are we letting that information just sit on the table?”
Summers’ lab has developed computer-aided imaging programs that detect colon cancer, osteoporosis, diabetes and other conditions. None of those have been widely adopted, which he attributes to the “culture of medicine,” among other factors.
Radiologists have used computers to enhance images and flag suspicious areas since the 1990s. But the latest AI programs can go much further, interpreting the scans, offering a diagnosis and even drafting written reports about their findings. The algorithms are often trained on millions of X-rays and other images collected from hospitals and clinics.
Across medicine, the FDA has OK’d more than 700 AI algorithms to aid physicians. More than 75% of them are in radiology, yet just 2% of radiology practices use such technology, according to one recent estimate.
For all the promises from industry, radiologists see a number of reasons to be skeptical of AI programs: limited testing in real-world settings, lack of transparency about how they work and questions about the demographics of the patients used to train them.
“If we don’t know on what cases the AI was tested, or whether those cases are similar to the kinds of patients we see in our practice, there’s just a question in everyone’s mind as to whether these are going to work for us,” said Dr. Curtis Langlotz, a radiologist who runs an AI research center at Stanford University.
To date, all the programs cleared by the FDA require a human to be in the loop.
In early 2020, the FDA held a two-day workshop to discuss algorithms that could operate without human oversight. Shortly afterwards, radiology professionals warned regulators in a letter that they “strongly believe it is premature for the FDA to consider approval or clearance” of such systems.
But European regulators in 2022 approved the first fully automatic software that reviews and writes reports for chest X-rays that look healthy and normal. The company behind the app, Oxipit, is submitting its U.S. application to the FDA.
The need for such technology in Europe is urgent, with some hospitals facing monthslong backlogs of scans due to a shortage of radiologists.
In the U.S., that kind of automated screening is likely years away. Not because the technology isn’t ready, according to AI executives, but because radiologists aren’t yet comfortable turning over even routine tasks to algorithms.
“We try to tell them they’re overtreating people and they’re wasting a ton of time and resources,” said Chad McClennan, CEO of Koios Medical, which sells an AI tool for ultrasounds of the thyroid, the vast majority of which are not cancerous. “We tell them, ‘Let the machine look at it, you sign the report and be done with it.’”
Radiologists tend to overestimate their own accuracy, McClennan says. Research by his company found physicians viewing the same breast scans disagreed with each other more than 30% of the time on whether to do a biopsy. The same radiologists even disagreed with their own initial assessments 20% of the time, when viewing the same images a month later.
About 20% of breast cancers are missed during routine mammograms, according to the National Cancer Institute.
And then there’s the potential for cost savings. On average, U.S. radiologists earn over $350,000 annually, according to the Department of Labor.
In the near term, experts say AI will work like autopilot systems on planes — performing important navigation functions, but always under the supervision of a human pilot.
That approach offers reassurances to both radiologists and patients, says Dr. Laurie Margolies, of Mount Sinai hospital system in New York. The system uses Koios breast imaging AI to get a second opinion on mammography ultrasounds.
“I will tell patients, ‘I looked at it, and the computer looked at it, and we both agree,’” Margolies said. “Hearing me say that we both agree, I think that gives the patient an even greater level of confidence.”
The first large, rigorous trials testing AI-assisted radiologists against those working alone give hints at the potential improvements.
Initial results from a Swedish study of 80,000 women showed a single radiologist working with AI detected 20% more cancers among mammograms than two radiologists working without the technology.
In Europe, mammograms are reviewed by two radiologists to improve accuracy. But Sweden, like other countries, faces a workforce shortage, with only about 70 breast radiologists in a country of 10 million people.
Using AI instead of a second reviewer decreased the human workload by 44%, according to the study.
Still, the study’s lead author says it’s essential that a radiologist make the final diagnosis in all cases.
If an automated algorithm misses a cancer, “that’s going to be very negative for trust in the caregiver,” said Dr. Kristina Lang of Lund University.
The question of who would be held liable in such cases is among the thorny legal issues that have yet to be resolved.
One result is that radiologists are likely to continue double-checking all AI determinations, lest they be held responsible for an error. That’s likely to wipe out many of the predicted benefits, including reduced workload and burnout.
Only an extremely accurate, reliable algorithm would allow radiologists to truly step away from the process, says Dr. Saurabh Jha of the University of Pennsylvania.
Until such systems emerge, Jha likens AI-assisted radiology to someone who offers to help you drive by looking over your shoulder and constantly pointing out everything on the road.
“That’s not helpful,” Jha says. “If you want to help me drive then you take over the driving so that I can sit back and relax.”
9 months ago
Bangladesh participates in Japan IT Week
Bangladesh participated in Japan IT Week, Spring, 2024 held from April 24- 26, 2024 at the Tokyo Big Sight. Ambassador of Bangladesh to Japan Shahabuddin Ahmed and Managing Director of Bangladesh Hi-Tech Park Authority G S M Jafarullah, ndc, inaugurated Bangladesh Pavilion on 24th April.
In the evening on the same day, Embassy of Bangladesh organized a seminar titled 'Digital Bangladesh: Your IT Destination' at the Seminar Hall of Tokyo Big Sight, in collaboration with Japan External Trade Organization (JETRO), UNIDO ITPO Tokyo and Bangladesh Association of Software and Information Services (BASIS).
Ambassador Shahabuddin Ahmed in his speech urged Japanese companies to invest in Bangladesh. G S M Jafarullah, ndc, Managing Director of Bangladesh Hi-Tech Park Authority, highlighted investment opportunists in the Hi-Tech Parks in Bangladesh. Senior Director of JETRO Yukihide Nakayama spoke about the business environment in Bangladesh while Masahiro Horikawa, CEO of BJIT Inc. shared his business experiences in Bangladesh. Dr. Ariful Haque, Minister (Commerce) of the Embassy delivered a presentation on support services to Japanese companies by the Embassy. On behalf of BASIS, Rejwanur Kabir, COO, Destiny Inc. explained about Bangladesh’s thriving IT sector, investment and business opportunities for Japanese companies and strength of exhibitor companies.
Japan IT Week is one of the major events on information technology in Asia. This year around 900 exhibitors from 20 countries across the world participated in the event. Seventeen Bangladeshi IT companies participated in the event under the auspices of Hi-Tech Park Authority. Japanese companies showed keen interest to Bangladeshi IT companies, and it is expected that Bangladesh’s participation in this fair will help boost Bangladesh’s IT and ITES export to Japan.
On the evening of 26th April, Bangladesh Embassy organized an Opinion Exchange & Networking Event on “Promoting Bangladesh’s IT & ITES Sector in Japan” at the Bangabandhu Auditorium of the Embassy with the participation of the Bangladeshi exhibitors of Japan IT Week, Bangladeshi IT Professionals in Japan and Embassy Officials.
10 months ago
The Russian space agency says its Luna-25 spacecraft has crashed into the moon.
Russia's robot lander the Luna-25 spacecraft crashed into the moon after it had spun into uncontrolled orbit, the country’s space agency Roscosmos reported on Sunday.
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“The apparatus moved into an unpredictable orbit and ceased to exist as a result of a collision with the surface of the moon,” read a statement from the agency.
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Roscosmos said it lost contact with the spacecraft on Saturday after it ran into trouble while preparing for its pre-landing orbit after reporting an “abnormal situation ” that its specialists were analyzing. “During the operation, an abnormal situation occurred on board the automatic station, which did not allow the maneuver to be performed with the specified parameters,” Roscosmos said in a Telegram post.
The spacecraft was scheduled to land on the south pole of the moon on Monday, racing to land on Earth’s satellite ahead of an Indian spacecraft.
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The lunar south pole is of particular interest to scientists, who believe the permanently shadowed polar craters may contain water. The frozen water in the rocks could be transformed by future explorers into air and rocket fuel.
The launch earlier this month was Russia’s first since 1976 when it was part of the Soviet Union.
1 year ago