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Digitaltrends
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Treasure trove of mysterious black holes uncovered by dark energy instrument
- Scientists using the Dark Energy Spectroscopic Instrument (DESI) have discovered a trove of intermediate-mass black hole candidates.
- 300 promising objects were identified, which is the largest group found to date.
- These intermediate black holes can be found in both large galaxies and smaller dwarf galaxies.
- The findings will help scientists better understand the relationship between black holes and the galaxies they inhabit.
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Universe Today
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CADRE’s Three Adorable Rovers Are Going to the Moon
- A trio of lunar rovers, called CADRE, is set to demonstrate autonomous exploration capability on the Moon.
- The rovers will communicate with each other and a remote base station, showcasing their ability for autonomous exploration.
- CADRE rovers, each about the size of a small suitcase, will launch from Kennedy Space Center in Florida on a SpaceX Falcon-9 rocket in late 2025 or early 2026.
- The destination for these rovers is the Reiner Gamma region in the Oceanus Procellarum on the lunar nearside.
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Arstechnica
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The odds of a city-killer asteroid impact in 2032 keep rising. Should we be worried?
- An asteroid, designated 2024 YR4, has an increased likelihood of striking Earth in 2032.
- NASA's estimate of the chances of impact has increased from 1.9% to 3.2%.
- The asteroid is large enough to cause localized devastation similar to the Tunguska event of 1908.
- Although the odds are not particularly high, the threat of an impact is still a cause for concern.
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Universe Today
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What’s That Smell? It’s Sulfur – A New Tool For Finding Alien Life
- Astronomers have identified sulfur as a potentially crucial indicator in narrowing the search for life on other planets.
- High concentrations of sulfur dioxide in a planet's atmosphere suggest that the planet is likely uninhabitable, eliminating it from further consideration.
- The presence of water vapor in a planet's atmosphere is an important factor in determining the potential for hosting life.
- Sulfur dioxide levels can help exclude rocky planets orbiting red dwarf stars that are dry, hot, and not suitable for life.
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The Robot Report
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Stial Technologies unveils humanoid robot for polishing
- Toronto-based Stial Technologies Inc. has acquired STFcore, a 6D force sensor company, and introduced its first humanoid robot, Stial Steven, designed for polishing applications.
- Stial manufactures polishing robots using artificial intelligence and anthropomorphism, enabling autonomous learning of product details and polishing processes.
- The new system represents an advance in embodied intelligence, integrating industrial and humanoid robots for a higher level of autonomous adaptability.
- The Stial Steven robot, equipped with proprietary process database, 6D force sensors, and multimodal AI model, offers superior flexibility and adaptability for intricate and fine polishing tasks.
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Earthsky
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Extreme cold is impacting more than 1,000 miles of US
- Extreme cold has gripped various parts of the U.S., with over 1,300 miles affected by Extreme Cold Warnings.
- Warnings include record low temperatures and dangerous wind chills in regions from North Dakota to South Central Texas.
- Parts of North Dakota are facing temperatures as low as 30 to 40 degrees below 0 degrees Fahrenheit.
- The Extreme Cold Warning is expected to be short-lived, with temperatures forecasted to warm above average by the week's end.
- San Antonio, Texas, is also experiencing unusually cold temperatures, with single-digit wind chills.
- An Arctic high pressure system from Canada is bringing the cold air southwards, affecting multiple states.
- Certain vulnerable groups, like the elderly and homeless, are at increased risk during extreme cold and should take precautions.
- Warning signs of frostbite and hypothermia should be closely monitored, and medical attention sought if symptoms are present.
- It is crucial to stay safe and take necessary measures to avoid cold-related illnesses during this extreme weather.
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Knowridge
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Webb telescope reveals birth of planets in a distant star system
- The James Webb Space Telescope (JWST) has aided astronomers in studying the formation of planets in a distant star system.
- A team led by a Ph.D. candidate used JWST to observe a young star called PDS 70, where two planets are in the process of forming.
- These findings, published in The Astronomical Journal, offer insights into planet formation by gathering material from the surrounding gas and dust.
- PDS 70 is a very young star with a large gap in its disk where planets PDS 70 b and PDS 70 c are actively growing by pulling in gas and dust.
- Observations using JWST's NIRISS instrument revealed details about the planets through a technique called Aperture Masking Interferometry.
- The study confirmed that the planets are accumulating material, supporting the idea of planetary growth through accretion.
- There are indications of circumplanetary disks around the planets, possibly hinting at moon formation similar to Jupiter and Saturn's moons.
- The discovery of a possible third planet in the system adds intrigue, with further JWST observations needed to confirm its nature.
- This study is significant in planetary science, showcasing the struggle planets face in competing with stars for material during their formation.
- The potential discovery of circumplanetary disks and a third planet offers new avenues for understanding planet formation in various systems.
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Earthsky
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The stars Shaula and Lesath herald the coming spring
- Shaula and Lesath are stars in the constellation Scorpius and are considered a sign of the approaching spring.
- The Pawnee tribe used the position of the stars to determine the timing of their Spring Awakening ceremony.
- The presence of Shaula and Lesath over the horizon symbolized the breaking of ice and the arrival of waterfowl.
- Observing these stars in the southeastern sky before dawn indicates that spring is on its way.
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Nasa
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NASA Selects New Round of Student-Led Aviation Research Awards
- NASA has selected two new university student teams to participate in real-world aviation research challenges.
- This round of the University Student Research Challenge (USRC) includes the first-ever award to a community college - Cerritos Community College.
- The selected teams will manage their own research projects, utilize state-of-the-art technology, and work alongside accomplished aeronautical researchers.
- The research topics include using environmentally friendly fire-retardant pellets to mitigate wildfires and designing a scaled-down prototype for an electric turbofan for supersonic aircraft.
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Digitaltrends
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Firefly’s Blue Ghost captures stunning footage of lunar surface
- Firefly Aerospace’s Blue Ghost spacecraft captures stunning footage from above the lunar surface.
- Blue Ghost successfully completes lunar orbit maneuver, moving to a lower orbit around the moon.
- The spacecraft will experience communication blackouts while going around the far side of the moon.
- Blue Ghost aims to support future human exploration of the moon under NASA's Artemis program.
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Arstechnica
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In a last-minute decision, White House decides not to terminate NASA employees
- Unlike workers at many other federal agencies this week, probationary employees at NASA were not terminated on Tuesday.
- Employees at the space agency anticipated a directive from the White House Office of Personnel Management to fire probationary employees but it never came.
- The White House confirmed that probationary employees at NASA, comprising about 6% of the workforce, would not be terminated.
- It is unclear whether the reprieve applies to all field centers or only some of them.
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Digitaltrends
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SpaceX just achieved another first with its Falcon 9 rocket
- SpaceX achieved a first by landing its Falcon 9 booster in The Bahamas. This marked the first international landing for SpaceX.
- The different landing location allows Falcon 9 to maximize its performance and provide winter weather recovery options.
- The Falcon 9 successfully deployed 23 Starlink satellites into low-Earth orbit.
- This was the 16th flight for the first-stage Falcon 9 booster, which has been successfully landing since 2015.
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Brighter Side of News
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Groundbreaking quantum simulation reveals a cataclysmic end to the universe
- Physicists proposed nearly half a century ago that the universe might be in a false vacuum state, which could potentially transition into a true vacuum, causing a fundamental shift in the cosmos.
- A study led by an international team used a quantum annealer to simulate false vacuum decay, a process where the universe's structure could completely change.
- The team observed bubble formation and interactions in real time, providing insight into how quantum transitions may have occurred in the early universe.
- The research is a significant leap in quantum simulation, offering a new way to study phase transitions and quantum fluctuations.
- By leveraging quantum annealers, researchers can explore non-equilibrium quantum systems and improve understanding of phase transitions.
- The study's implications extend beyond cosmology, impacting quantum computing and material science, potentially leading to breakthroughs in various fields.
- Insights from the research could enhance quantum computing performance by improving error management in qubits and processing information more effectively.
- The project, funded by UKRI and the Leverhulme Trust, demonstrates the intersection of fundamental physics and technological innovation in exploring the universe's mysteries.
- As quantum technology advances, simulating fundamental processes like vacuum decay could open new frontiers in physics, bringing theoretical concepts closer to reality.
- The study highlights the importance of curiosity-driven research and the potential for quantum computing to address deep questions about the nature of the Universe.
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Brighter Side of News
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Milky Way’s central black hole is generating massive bursts of energy
- Researchers using NASA’s James Webb Space Telescope have observed Sagittarius A*, the supermassive black hole at the center of the Milky Way, showing its unpredictable bursts of energy.
- The black hole, with a mass of four million times that of the Sun, is surrounded by an accretion disk that fuels its chaotic activity across various wavelengths.
- Sagittarius A* is unique in its continuous flaring activity, ranging from faint flickers to intense eruptions, never reaching a steady state.
- The recent study highlights the random nature of the flares and raises questions about the processes driving this variability.
- Observations revealed that Sagittarius A* produced multiple major flares per day, with no clear pattern or repetition in their variability.
- The emissions from the black hole are suspected to result from disturbances in the accretion disk and magnetic reconnection events within its extreme environment.
- Magnetohydrodynamic simulations suggest that changes in magnetic field strength and plasma density contribute to the dynamic behavior of Sagittarius A*.
- The study using JWST’s NIRCam unveiled delays between emissions at different wavelengths, providing insights into particles' energy loss around the black hole.
- Future observations aim to uncover hidden patterns in the black hole's activity and refine understanding of its variability.
- The research on Sagittarius A* offers valuable insights into supermassive black holes, showcasing advancements in observational astronomy and understanding extreme cosmic phenomena.
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