Space & Technology 

Space News , Japan :- Japan is gearing up for a historic lunar mission as its robotic SLIM spacecraft aims for the country's maiden successful moon landing on January 19. The mission, formally named "Smart Lander for Investigating Moon" (SLIM), is set to commence its touchdown operations at 10 a.m. EST on Friday, with a gentle landing anticipated 20 minutes later, provided all goes as planned.The live coverage of this landmark event will be available on Space.com, courtesy of the Japan Aerospace Exploration Agency (JAXA), or directly through JAXA's channels. The coverage is scheduled to begin at 9 a.m. EST.SLIM embarked on its journey atop a Japanese H-2A rocket on September 6 of the previous year. Sharing its launch with an X-ray space telescope named XRISM, SLIM navigated a lengthy and energy-efficient route to reach the moon. XRISM was successfully deployed into low Earth orbit after launch, delivering its initial test images post a triumphant checkout period.Following its arrival in orbit around the moon on Christmas Day, SLIM spent three weeks preparing for its impending landing. The ambitious objective is for SLIM to touch down within 330 feet (100 meters) of a predetermined spot on the rim of the moon's Shioli Crater. This mission aims to showcase the technological prowess required for precise lunar touchdowns.The nonprofit Planetary Society emphasized SLIM's mission architecture, expressing the aspiration to redefine the standards of lunar landing missions, moving from convenient landing sites to precise, targeted touchdowns.Achieving success in this endeavor would propel Japan into an exclusive group of nations that have accomplished soft landings on the moon. To date, only four countries—the Soviet Union, the United States, China, and India—have achieved this remarkable feat.Notably, SLIM is not Japan's inaugural attempt at a lunar landing. The OMOTENASHI lander, part of NASA's unmanned Artemis 1 mission in November 2022, aimed for the moon but did not reach its destination. In April of the same year, the Hakuto-R spacecraft, developed by Tokyo-based company ispace, encountered a crash during its landing attempt due to complications arising from the moon's rugged topography.This lunar mission is unfolding against the backdrop of recent setbacks in lunar exploration, including a failed attempt by Astrobotic's Peregrine lander. The American lander experienced a fuel leak shortly after its January 8 launch, leading to the cancellation of a planned mid-February landing. Despite the fuel leak, Peregrine managed to reach lunar distance before redirecting back toward Earth, with an anticipated collision over the South Pacific on January 18.

Read More → Posted on 2024-01-18 16:55:28

 Space & Technology 

Space News ,U.S :- Axiom Space is all set to launch its third private astronaut mission to the International Space Station (ISS). However, there are some technical issues that have made the launch preparations a bit tight on schedule.On January 16, Axiom, NASA, and SpaceX officials shared in a media teleconference that they are moving forward with the planned Ax-3 mission launch to the ISS on January 17. The Falcon 9 is scheduled to take off at 5:11 p.m. Eastern, carrying a Crew Dragon spacecraft that will dock with the station about 36 hours later.Originally, the launch readiness review, the final major check before launch, was supposed to happen before the media briefing. However, it got postponed to early January 17 to allow more time for the teams to get everything ready.Over the weekend, inspections revealed issues with joints connecting the Dragon spacecraft to the Falcon 9 upper stage. Two of the four joints were adjusted a bit differently than usual, according to Benji Reed, senior director of human spaceflight programs at SpaceX. As a precaution, SpaceX decided to replace the connections, causing a delay in launch preparations.Another challenge found during preparations involved the parachute system. Inspections from a previous cargo Dragon spacecraft splashdown in December showed that certain straps, known as "energy modulators," didn't function as intended. SpaceX took precautions by untwisting these straps in the Ax-3 Crew Dragon spacecraft's parachute system. They are collaborating with NASA to make sure this won't be an issue during the mission.Despite these challenges, the launch teams worked hard to keep the launch on schedule. The Ax-3 mission is part of Axiom Space's series of private astronaut missions, paving the way for commercial modules on the ISS. These modules will eventually become the core of a new commercial space station after the ISS retires.Axiom aims to continue these missions twice a year until their first module is installed in late 2026. The next mission, Ax-4, is tentatively set for the fall of 2024.The Ax-3 mission is led by Michael López-Alegría, Axiom's chief astronaut, and includes pilot Walter Villadei from the Italian Air Force. The mission specialists are Alper Gezeravcı from Turkey and Marcus Wandt from Sweden. Gezeravcı will be Turkey's first person in space, and Wandt will be the second from Sweden, thanks to collaboration with the European Space Agency.While the Ax-3 team faces challenges, they are excited about the mission, especially López-Alegría, for whom this will be his sixth trip to space. He expressed his enthusiasm, saying, "As long as they ask me to fly, my hand will be raised."

Read More → Posted on 2024-01-17 15:04:14

 Space & Technology 

Space News ,World :- Astrobotic recently shared an important update about its Peregrine spacecraft. Originally planned to land on the moon, the spacecraft faced a challenge due to a propellant leak. Instead, it is now set to reenter Earth's atmosphere soon.In their social media post on January 13, Astrobotic explained that Peregrine, launched with the help of Vulcan Centaur, ended up in an unusual orbit, going beyond the moon's orbit. The plan was for it to swing back around the Earth and enter the moon's orbit. However, the propellant leak created uncertainty about the spacecraft's path.The company now predicts that Peregrine is heading towards Earth and will likely burn up in the atmosphere. The exact time and location of reentry were not disclosed, but estimates point to late January 18 near Australia.On January 14, Astrobotic confirmed their decision not to attempt any maneuvers with the remaining fuel. They consulted with NASA and received recommendations from the space community and the U.S. Government on the safest course of action. The decision was made to let the spacecraft burn up during reentry, ensuring the responsible conclusion of Peregrine's mission and preserving the future of cislunar space.Peregrine faced a propellant leak shortly after its January 8 launch. Astrobotic traced the issue to a valve failure in the helium pressurization system, causing an oxidizer tank to rupture. Despite initial concerns about running out of propellant, the spacecraft continues to operate. Astrobotic has even powered on several payloads, including those from NASA's Commercial Lunar Payload Services (CLPS) program.In the latest updates, the propellant leak has slowed considerably, and the spacecraft has enough fuel to maintain its attitude and perform small maneuvers until the end of the mission. A media briefing about the mission is scheduled for January 18, where NASA and Astrobotic will provide more details.                                     

Read More → Posted on 2024-01-15 16:52:00

 Space & Technology 

Technology News ,India :- CoRover.ai has become a leader in India's own smart technology with the introduction of BharatGPT, a Large Language Model (LLM) inspired by Prime Minister Narendra Modi’s forward-thinking leadership.BharatGPT, linked with Digital India's National Hub of Language Technology (NHLT), can handle over 12 Indian languages for voice communication and 22 languages for written communication. This achievement is part of the National Language Translation Mission (NLTM) under the Ministry of Electronics and Information Technology (MeitY).Amitabh Nag, CEO of BHASHNI, praised CoRover for effectively managing numerous users and finding clever ways to assist with different languages and voice support. Their contributions were particularly valuable for clients like IRCTC and NPCI. The breakthroughs in language technology, driven by AI, ML, and NLP, as seen in BharatGPT, are expected to inspire new projects.CoRover's intelligent assistants, such as ChatBots, VoiceBots, and VideoBots, are already assisting various organizations like IRCTC, LIC, IGL, and the Indian Navy. With a user base surpassing one billion, these Virtual Assistants are now powered by BharatGPT.What sets BharatGPT apart is its simplicity for developers and business professionals to create intelligent assistants in multiple languages quickly. They can personalize it by adding their own information to meet their specific needs.The platform comprises different components such as speaking, listening, analyzing, and more. BharatGPT is unique because it can create substantial assistants for businesses, distinguishing it from other conversational computer programs.Notably, BharatGPT provides Gen AI as a Service (GaaS) for government, Public Sector Undertakings (PSUs), and private organizations. It excels at intelligently finding and using information, making it versatile in performing various tasks due to its learning and adaptive capabilities.Ankush Sabharwal, Founder of CoRover, emphasizes the mission to deliver a smart large language model tailored to specific organizational needs.Abhishek Singh, President & CEO of NeGD and DIC (Digital India), sees BharatGPT as a transformative force for Conversational AI in India, positioning the country as a pioneer in AI technology.

Read More → Posted on 2024-01-15 15:08:51

 Space & Technology 

Space News , India :- The Indian Space Research Organisation (ISRO) is planning to use Russian spacesuits instead of their own for the Gaganyaan mission, as reported by Hindustan Times.Originally, ISRO developed its own Intra Vehicular Activity (IVA) suits for astronauts through the Vikram Sarabhai Space. These suits were set to be used during the Gaganyaan mission, but recent preparations suggest a change of plans.An official document shared with Hindustan Times' Soumya Pillai stated, "To ensure the crew's safety and meet program requirements, Russian spacesuits will be included in the (Gaganyaan) mission."S Somanath, earlier this month, declared 2024 as "the year for Gaganyaan," highlighting ISRO's upcoming key tests and demonstrations related to the mission.About the ISRO Gaganyaan Mission:ISRO's Gaganyaan mission aims to showcase India's ability to conduct its first human spaceflight. The plan involves sending a crew of three members into orbit at 400km for a three-day mission, ensuring their safe return.Before the actual launch, ISRO will focus on developing critical technologies such as a human-rated launch vehicle, a Life Support System for a comfortable space environment, crew emergency escape provisions, and managing crew aspects like training and recovery.Precursor Missions:Several tests and programs are scheduled before the Gaganyaan mission, including the Integrated Air Drop Test (IADT), Pad Abort Test (PAT), and Test Vehicle (TV) flights. Unmanned missions will also be conducted to assess the safety and reliability of all systems before the manned mission takes place.

Read More → Posted on 2024-01-14 05:24:26

 Space & Technology 

Technology News , World :- In the year 3023, people might have an incredible way to see how the Arizona desert looked a thousand years ago. It's all thanks to a unique project known as the Millennium Camera, an art and science initiative by Jonathon Keats, an experimental philosopher from the University of Arizona College of Fine Arts. This camera aims to capture an extraordinarily long-exposure photo, spanning a thousand years, offering future Tucson inhabitants a glimpse of what has changed and what has remained the same.To achieve this, Keats drew inspiration from the past, designing the Millennium Camera based on the ancient pinhole camera, invented around 1,000 years ago. The camera is a copper cylinder with a thin sheet of 24-karat gold on one end, featuring a tiny hole punched into it. Sunlight passes through this hole, reaching a light-sensitive surface coated with layers of rose madder, an oil paint pigment.Mounted on a steel pole and pointed toward a Tucson neighborhood, the controlled light exposure will gradually fade the pigment, creating a millennium-long exposure photo. Over the centuries, there will be noticeable movement in the frame, making future observers squint to decipher the changes. However, Keats finds charm in this, as stable elements like mountains will appear bold, while changing objects like buildings will be semi-transparent, emphasizing the impermanence of humanity.Despite the ambitious plan, uncertainties loom over the camera's fate, considering natural disasters, theft, or changes to the landscape over the next millennium. However, the Millennium Camera serves a dual purpose – not only as a time capsule for future generations but also as a present-day inspiration. Located near a hiking trail on Tumamoc Hill, the camera invites hikers to ponder the future while appreciating the present view. Keats envisions installing similar cameras in different directions in Arizona and in locations like Griffith Park in Los Angeles, China, and the Austrian Alps.Keats believes that contemplating potential future scenarios, even bleak ones, can motivate people to take action to shape a better future. So, whether or not the Millennium Camera survives its intended timeframe, it stands as a symbol encouraging us to think about the past, present, and future.

Read More → Posted on 2024-01-13 16:14:10

 Space & Technology 

Space News ,U.S :- SpaceX is getting ready for its next exciting astronaut mission, known as Ax-3. The launch is set to happen on January 17 from Pad 39A at NASA's Kennedy Space Center in Florida. The mission will send four people to the International Space Station (ISS).Recently, SpaceX shared some cool news: the Dragon capsule, which will transport the astronauts to and from the ISS, has just arrived at Pad 39A's hangar. SpaceX even posted pictures of the spacecraft in its new home on X.Ax-3 is the third mission to the ISS organized by Axiom Space, a company based in Houston. Similar to the two missions before it in April 2022 and May 2023, Ax-3 will use SpaceX hardware, including the Falcon 9 rocket and the Dragon capsule.The crew for Ax-3 includes former NASA astronaut Michael López-Alegría, Italian Air Force Col. Walter Villadei (who also flew with Virgin Galactic in June 2023), Marcus Wandt of the European Space Agency, and Alper Gezeravcı, the first citizen of Turkey to reach space.López-Alegría, who now works for Axiom, will lead the mission. It's interesting to note that NASA requires every private crewed mission to the ISS to be led by a former agency astronaut. López-Alegría, a dual Spanish-American citizen, brings an unprecedented international flair to Ax-3.In September 2023, López-Alegría shared, "The Ax-3 mission will be transformational, fostering partnerships outside the ISS and positioning European nations as pioneers in the emerging commercial space industry."Ax-3 marks SpaceX's 12th astronaut mission. Aside from the two Axiom flights, Elon Musk's company has launched eight crewed missions for NASA, including the Demo-2 test flight in 2020, and the private Inspiration4 effort. All these missions visited the ISS, except for Inspiration4, where Dragon flew freely in Earth orbit.One more SpaceX mission remains at the ISS – Crew-7, a four-person crew that launched last August and is scheduled to return to Earth next month.

Read More → Posted on 2024-01-13 14:22:16

 Space & Technology 

Betavolt Technology, a Chinese company, has created a groundbreaking nuclear battery that can power your phone for an incredible 50 years without needing to be charged.The small-sized atomic energy batteries, measuring just 15 x 15 x 5mm (less than a coin), are being developed by Betavolt. These compact batteries use 63 nuclear isotopes to generate 100 microwatts and 3V of electricity through a process called radioactive decay.Currently undergoing pilot testing, Betavolt aims to mass-produce these batteries for various commercial devices, including phones, drones, aerospace equipment, AI, medical devices, advanced sensors, and micro-robots. The company drew inspiration from devices like pacemakers and satellites.Betavolt has ambitious plans to enhance its technology and produce a 1-watt battery by 2025. The company claims that its development is ahead of European and American scientific research institutions and enterprises.Mini Nuclear Batteries Revolutionizing Electronics: No More Chargers Needed!This revolutionary technology has the potential to transform electronics by eliminating the need for chargers or portable power banks. Devices powered by these batteries could run continuously without the batteries degrading in terms of capacity and lifespan, as seen with traditional Li-ion batteries.The BV100, as Betavolt calls it, also promises increased safety. According to the company, these batteries won't catch fire or explode, even when punctured or exposed to high temperatures. This contrasts with some current batteries that pose safety risks when damaged.Unlimited Power for Continuous Use: Drones, Phones, Electric Cars, and More!This innovation could provide continuous power for drones, phones that never stop running, and electric cars that don't require recharging. While nuclear batteries are currently used in space exploration and other specialized applications, Betavolt's approach aims to make them more accessible and efficient.How Betavolt's Radioactive Battery Works: A Safer ApproachBetavolt scientists used nickel-63, a radioactive element, as the energy source and diamond semiconductors as energy converters. The team developed a thin single-crystal diamond semiconductor, placing a nickel-63 sheet between two diamond semiconductor converters. The decay energy of the radioactive source is then converted into an electrical current.The advantages of Betavolt's atomic energy batteries include their lightweight design, long service life, high energy density, and the ability to function under extreme temperatures from -60 to 120 degrees Celsius. The modular design allows multiple atomic batteries to be connected, providing higher energy output for various applications, including automotive technology and AI systems.Addressing Concerns: Safety FirstDespite the incredible potential, some may be hesitant due to the association of nuclear materials with disasters like Chernobyl and Fukushima. Betavolt addresses these concerns, stating that the battery is safe with no external radiation. It can be used in medical devices inside the human body, such as pacemakers and cochlear implants. After decay, the nuclear isotopes become non-radioactive copper, posing no environmental threat.While this technology may sound like something out of 1950s science fiction, it has the potential to revolutionize electronics, providing unwired, always-on devices and ushering in a new era of nuclear energy use.

Read More → Posted on 2024-01-13 14:16:40

 Space & Technology 

Space News , India :- Indian space enthusiasts have something exciting to look forward to! AgniKul Cosmos, a rising star in India's private space race, has officially announced the launch of its Agnibaan Sub-Orbital Technological Demonstrator (SOrTeD) rocket by the end of the first quarter of 2024. This upcoming test flight is a big step forward for India's growing space dreams.The Agnibaan SOrTeD rocket is a single-stage rocket that aims to test and confirm the technologies needed for Agnibaan, AgniKul's future orbital launch vehicle. This suborbital flight, reaching a height of 70 km, will provide important information about how critical systems like the engine, guidance, and control mechanisms perform.Here's the exciting part: Agnibaan SOrTeD will use a modern kerolox engine, a mix of kerosene and liquid oxygen. This combination is not only cost-effective but also reliable, offering a smart alternative to traditional fuels. This advancement could lead to more affordable and frequent space launches in the future.If the launch of Agnibaan SOrTeD is successful, it will be a significant achievement for AgniKul and a boost for India's growing private space sector. It showcases the increasing capabilities of Indian companies to compete globally and contribute to the country's space aspirations.The success of Agnibaan SOrTeD's test has great potential for the future. It might open the door to a new era of affordable and frequent space launches, supporting scientific research, satellite deployment, and even space tourism in the years to come.As the countdown to Agnibaan SOrTeD's launch officially begins, space enthusiasts in India and around the world are eagerly watching. This test flight is a crucial step toward realizing India's orbital dreams and establishing itself as a significant player in the global space competition.

Read More → Posted on 2024-01-13 13:59:46

 Space & Technology 

Technology News ,World :- Guess what? Wi-Fi is about to get a major upgrade, and it's called Wi-Fi 7, officially known as 802.11be. Brace yourself because our homes and offices are on the verge of experiencing incredible speeds—almost 5.8 Gigabits per second (Gbps). Yes, you read that right!I have a little secret to share. I find it hard to believe when Intel claims that a typical Wi-Fi 7 laptop can reach a maximum speed of 5.8 Gbps. But, let's not get caught up in the top-end numbers. What I can believe is that Wi-Fi 7 can deliver real-world speeds of around 4 Gbps, which is more than fast enough for most people, unless you're running a high-performance supercomputer cluster at home.So, what makes Wi-Fi 7 stand out from its predecessor, Wi-Fi 6E, which can reach speeds of up to 1.5 Gbps? Well, Wi-Fi 7 achieves these blazing speeds thanks to some cool new features:Increased Channel Bandwidth:- Wi-Fi 7 doubles the maximum channel bandwidth from 160MHz to 320MHz, allowing for faster data transmission. Bigger bandwidth means higher wireless download speeds.4K Quadrature Amplitude Modulation (QAM):- This feature lets each signal pack up to 120% more data into a channel compared to Wi-Fi 6E. Multi-Link Operation (MLO):- This feature allows devices to connect across two or three bands (2.4 GHz, 5GHz, and 6GHz), boosting speed and stability. It seamlessly switches to another band if one is out of range. Improved Latency:- Integrating all three bands reduces airtime restrictions, making immediate data packet transmission more likely. This is great for applications requiring low latency, like online gaming and video conferencing. MU-MIMO Enhancement:- Wi-Fi 7 supports more multi-user, multiple-input, multiple-output (MU-MIMO) spatial streams, enabling routers to communicate with more devices simultaneously, especially in crowded environments. Multi Resource Units (RU):- Unlike older Wi-Fi standards, Wi-Fi 7 allows the channel to be shared if there's available room in itWi-Fi 7 operates on the familiar 2.4GHz, 5GHz, and 6GHz bands, making it backward compatible with previous Wi-Fi standards. However, older devices won't fully benefit from its higher performance and new features.To make the most of Wi-Fi 7, all your gear needs to support the new standard. With the right equipment, you can enjoy 8K movies, augmented reality/virtual reality gaming, and lightning-fast large file downloads.For home networks, Wi-Fi 7 enhances the performance of smart home devices, providing a more reliable connection for Internet of Things technologies. The improved bandwidth and speed are perfect for families with multiple devices streaming high-definition content simultaneously.In businesses, Wi-Fi 7 supports more devices with minimal interference, making it ideal for large offices and coworking spaces. The improved speed and stability facilitate seamless video conferencing and efficient cloud-based applications.Now, here's a bit of a downside. The 6 GHz wireless spectrum, while great for fast data transfers at close range, struggles with long distances and interference from physical obstructions. However, the Federal Communications Commission (FCC) is working on a solution that will increase Wi-Fi 7's range and overall performance.Wi-Fi 7 routers are already available, but they come with a hefty price tag. If you're eager to experience the cutting edge, go ahead and invest. But for most people, it might be wise to wait until more devices support Wi-Fi 7, and prices come down. After all, this new standard is a significant leap forward in wireless technology, and it's only going to get better!

Read More → Posted on 2024-01-11 15:06:54

 Space & Technology 

Technology News ,World :- Researchers at Harvard's School of Engineering have created an innovative lithium metal battery that can be charged and discharged over 6,000 times, surpassing other batteries in durability. The breakthrough not only introduces a novel method for making solid-state batteries but also enhances our understanding of the materials crucial for these potentially game-changing batteries.Traditional lithium metal anode batteries are considered highly desirable due to their capacity, which is ten times greater than commercial graphite anodes. This could significantly extend the driving range of electric vehicles. Xin Li, Associate Professor of Materials Science at SEAS and senior author of the paper, emphasized the importance of this research in moving towards practical solid-state batteries for industrial and commercial use.A major challenge in designing these batteries is the formation of dendrites on the anode's surface. These dendrites, similar to roots, grow into the electrolyte, causing short circuits or even fires. The researchers addressed this issue by using micron-sized silicon particles in the anode to control the lithiation reaction, preventing dendrite formation and facilitating even plating of a thick layer of lithium metal.Unlike traditional lithium-ion batteries, where lithium ions penetrate deep into the anode, the solid-state battery design constrains the lithiation reaction to the surface of silicon particles. This results in lithium metal plating around the silicon core, creating a uniform surface that prevents dendrite growth. The even surface also allows for quick plating and stripping, enabling the battery to recharge in just about 10 minutes.The researchers successfully tested a postage stamp-sized pouch cell version of the battery, which outperformed other pouch cell batteries on the market by retaining 80% of its capacity after 6,000 cycles. The technology has been licensed to Adden Energy, a Harvard spinoff company, for further development into a smartphone-sized pouch cell battery.Li and his team also identified the unique properties of silicon that facilitate the lithium diffusion process, providing a pathway to discover new materials for battery design. This research opens up possibilities for developing batteries with enhanced performance and durability, bringing us closer to a future of more efficient and long-lasting energy storage solutions.

Read More → Posted on 2024-01-11 14:47:09

 Space & Technology 

Space News ,NASA :- In a media teleconference held on Tuesday (Jan. 9), NASA leadership announced a shift in the timeline for its flagship Artemis missions. The Artemis 2 mission, originally set for November 2024, is now rescheduled for September 2025. Likewise, the Artemis 3 moon-landing mission, initially targeted for late 2025, is now aiming for September 2026.During the briefing, NASA Administrator Bill Nelson emphasized the agency's commitment to safety. He stated, "Safety is our top priority, and to provide the Artemis teams with more time to address challenges related to first-time developments, operations, and integration, we are extending the timeline for Artemis 2 and 3."Jim Free, NASA's associate administrator, highlighted that the decision to delay Artemis 2 was made with crew safety as the foremost consideration. "Safety is our number one priority. As we prepare to send our friends and colleagues on this mission, we are dedicated to launching as safely as possible. We will launch when we're ready," Free stated during the press conference.Amit Kshatriya, deputy associate administrator for NASA's Moon to Mars program, outlined various new systems and technologies being tested and developed ahead of Artemis 2. These include facilities at Kennedy Space Center to facilitate rapid propellant loading, crew ingress and egress, a new abort system, and an advanced life support system, all aimed at enhancing crew safety.Kshatriya addressed concerns regarding the heat shield issues encountered during the Artemis 1 test flight around the moon in late 2022. He explained that while the heat shield adequately protected the Orion capsule, unexpected charred pieces were observed. Additionally, he mentioned the need to replace some life-support hardware inside the Artemis 3 Orion spacecraft due to testing failures.The briefing also highlighted challenges with the electrical system in the crew abort system, designed to pull the capsule away from NASA's Space Launch System rocket in the event of a launch anomaly. Kshatriya reassured that investigations were underway, and multiple options were being considered to address the issue.Artemis 2, when launched, will carry a crew of four around the moon and back to Earth, including NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch, as well as Canadian Space Agency astronaut Jeremy Hansen. Despite the delays, NASA leadership remains enthusiastic about the Artemis missions, viewing them as a testament to what can be achieved through national and global collaboration when aiming for unprecedented accomplishments in space exploration.

Read More → Posted on 2024-01-10 15:33:27

 Space & Technology 

Space News ,World :- In the vast reaches of space, a peculiar green glow, reminiscent of a Grinch-like apparition, has been captivating astronomers. Known as the Green Monster, this enigmatic phenomenon was first spotted last year meandering through the remnants of a supernova, painting a mesmerizing scene in the cosmic canvas.Captured by NASA's James Webb Space Telescope alongside Hubble, Spitzer, and Chandra space telescopes, a recent image unveiled at the American Astronomical Society conference provides an unprecedented glimpse into the cosmic drama surrounding Cassiopeia A (Cas A). Situated approximately 11,000 light-years away, Cas A is an expanding shell of hot gas, and its light reached us 340 years ago.The captivating image showcases the Green Monster, a 10-light-year-long streak of light infused with red clouds, surrounded by cosmic hues of white, green, and orange. This celestial spectacle has ignited astronomers' curiosity, prompting a year-long quest to decipher its origin within the well-studied supernova remnant.The latest observations, combining the capabilities of multiple space telescopes, have propelled scientists closer to demystifying the Green Monster's origins. The image's X-ray properties align with the outer regions of the supernova debris field, suggesting that this peculiar feature emerged when a blast wave collided with material shed by the ill-fated star, tens of thousands of years before its explosive demise.Study co-author Ilse De Looze compares the Green Monster to a celestial photobomber, separate from the central part of Cas A. By digitally removing this cosmic intruder, astronomers gained unprecedented access to the background details, uncovering a well-preserved area near the explosion's epicenter.As the Green Monster took a backseat in the imagery, a "treasure map" unfolded, revealing a delicate, web-like network near the center of Cas A. Purdue University's Danny Milisavljevic, who led the study, expressed excitement at the opportunity to witness the "insides of a supernova explosion so well-preserved and with such detail."The network of "pristine debris" within Cas A likely formed during the star's collapse when its interior mixed with intensely hot radioactive matter. Milisavljevic emphasizes that studying these structures can provide valuable insights into the physical processes preceding a star's collapse.However, as one cosmic mystery unravels, another emerges. The Green Monster's greenish glow is adorned with "remarkably round holes," possibly formed when knots of supernova ejecta punctured an expanding cloud of stellar gas previously shed by the star.In the quest to unveil the nature of the ill-fated star and its activities leading up to the supernova explosion, future studies of the Green Monster and its mysterious circles hold the promise of shedding light on these cosmic enigmas.This groundbreaking research is detailed in a paper submitted to The Astrophysical Journal, marking a significant leap forward in our understanding of the celestial wonders that adorn our universe.

Read More → Posted on 2024-01-10 15:09:51

 Space & Technology 

Space News ,NASA :- In a groundbreaking discovery using NASA's James Webb Space Telescope (JWST), astronomers have identified an unexpected phenomenon—a celestial aurora surrounding a brown dwarf known as W1935, located more than 40 light-years away from Earth. Brown dwarfs, often dubbed "failed stars," fall between gas giant planets and stars in size, forming from collapsing gas and dust clouds but lacking the mass required for hydrogen fusion.Unlike typical auroras witnessed on Earth or other planets, the mystery deepens around W1935 because no nearby stars exist to supply charged particles needed to generate the aurora. In the absence of an external solar wind, scientists speculate that internal processes within the brown dwarf or interstellar plasma may be responsible for the peculiar light display.The team, led by astronomer Jackie Faherty from the American Museum of Natural History, made this remarkable find while investigating a dozen brown dwarfs with JWST. Among them, W1935 stood out due to its methane emissions, detected through infrared signals—an unusual occurrence not observed in its near-identical counterpart, W2220.The researchers delved into modeling the atmospheres of these brown dwarfs to unravel the methane emission mystery. Surprisingly, they found that while W2220 exhibited a typical cooling with altitude, W1935 experienced a temperature inversion, heating up at higher altitudes—a puzzling phenomenon absent an apparent external heat source.Drawing parallels with Jupiter and Saturn, where similar temperature inversions are linked to auroras, the team theorizes that the aurora phenomenon might be responsible for W1935's atmospheric anomaly. This marks the first time that a methane emission from a brown dwarf has been associated with an aurora, according to JWST observations.Astronomer Ben Burningham of the University of Hertfordshire expressed astonishment at the unexpected temperature inversion, noting that similar instances were previously observed in planets with nearby stars, but not in celestial bodies lacking an obvious external heat source.Jackie Faherty, presenting the findings at the 243rd meeting of the American Astronomical Society in New Orleans, emphasized the significance of using the JWST to explore and understand celestial processes beyond our solar system. With W1935, scientists now have a unique opportunity to unravel the intricacies of auroral processes without the influence of stellar irradiation, providing a new perspective on the chemistry of brown dwarfs.

Read More → Posted on 2024-01-10 14:38:59

 Space & Technology 

Space News ,China :- China reached another milestone in its space exploration endeavors as it successfully launched the Einstein Probe on Tuesday. The probe, designed to detect X-ray emissions from intense cosmic events, took off from the Xichang Satellite Launch Center in southwestern China via a Long March 2C rocket at 2:03 a.m. (0703 UTC), Jan. 9, marking another achievement for the China Aerospace Science and Technology Corp. (CASC).The Einstein Probe (EP) represents a significant stride in China's strategic space science initiatives. Over the next three years, the spacecraft aims to observe distant, dramatic celestial interactions, including tidal disruption events, supernovae, and the high-energy electromagnetic counterparts to gravitational wave events. These observations could provide valuable insights into the intricate processes surrounding massive black holes and the formation of ionized matter jets.Operating at a 600-kilometer altitude with a 29-degree inclination orbit, the 1,450-kilogram EP spacecraft is equipped with a Wide-field X-ray Telescope (WXT). What sets the WXT apart is its innovative "lobster-eye" optics, inspired by the eyes of lobsters, allowing it to delve deeper into X-ray events across a broader spectrum.The WXT utilizes 12 lobster-eye optics modules, previously tested in a 2022 mission, providing a remarkable field of view spanning 3,600 square degrees. The European Space Agency (ESA) contributed to the mission by supporting the testing and calibration of WXT's detectors and optical elements.Erik Kuulkers, ESA Project Scientist, emphasizes the EP's strength in observing almost the entire night sky in about 5 hours, thanks to the lobster-eye technique. He notes the capability to swiftly capture unpredictable transient events in X-ray light, crucial for understanding the origins of gravitational wave impulses.EP's onboard data processing and autonomous follow-up capabilities, including the Follow-up X-ray Telescope (FXT), allow rapid response to detected X-ray events. Kuulkers anticipates that EP will play a pivotal role in identifying the source of gravitational wave impulses observed on Earth.In exchange for its contributions, ESA will gain access to 10% of the data generated by EP, benefiting the European Einstein Probe Science Team members with diverse interests, ranging from auroral emission on Jupiter to the swallowing of matter by supermassive black holes in other galaxies.As China continues its dedicated space science missions, EP follows in the footsteps of the DAMPE dark matter probe launched in 2015. Approved in 2017 as part of the Chinese Academy of Sciences’ Strategic Priority Program, EP joins a lineup of ambitious projects exploring phenomena such as magnetars, active galactic nuclei, and the interactions between comets and solar wind ions.Looking ahead, China's commitment to space exploration remains strong, with plans for upcoming missions, including the launch of the Sino-Franco Space-based multi-band astronomical Variable Objects Monitor (SVOM) in Spring 2024.

Read More → Posted on 2024-01-09 17:24:53