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Earthsky
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Image Credit: Earthsky
Be a storm spotter and help during severe weather
- During severe weather season in the US, storm spotters play a crucial role in relaying reports to the National Weather Service to help keep people safe.
- Storm spotters are volunteers who undergo training to identify severe weather features and report them accurately.
- The National Weather Service issues numerous weather warnings yearly, but ground truth from storm spotters is invaluable for accurate assessments.
- To become a storm spotter, individuals can take free training courses offered by their local National Weather Service office.
- Reports from storm spotters are essential for identifying tornadoes, damaging winds, large hail, and flooding during severe weather events.
- Besides first responders and utility workers, ordinary citizens with a drive to serve their communities are encouraged to become trained spotters.
- Modern technology like radar and dual-pol radars aid in weather forecasting, but ground reports from storm spotters provide critical real-time data.
- Spotting non-tornadic severe storms, such as those producing damaging winds and large hail, is another important role for storm spotters.
- The National Weather Service relies on storm spotters to provide ground truth on severe weather, enhancing the accuracy of warnings and keeping the public safe.
- To stay informed during severe weather season, individuals should follow local forecasts from the National Weather Service and updates from the Storm Prediction Center.
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Earthsky
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Image Credit: Earthsky
Look for amazing Omega Centauri, using Spica as a guide
- Spica, a bright blue-white star, can help you locate the Omega Centauri star cluster, the largest and finest globular star cluster visible to the naked eye.
- Northern Hemisphere spring evenings, when Spica and Omega Centauri are highest around midnight, are ideal for observing these celestial wonders.
- Spica, visible in the Northern Hemisphere, can be easily found using the Big Dipper asterism, leading you to this remarkable star cluster.
- With a clear and dark sky, Omega Centauri, located about 35 degrees below Spica, can be seen as a faint, possibly fuzzy star.
- Residents of the Southern Hemisphere have a more favorable view of Omega Centauri, which is higher in their skies and can be found using the Southern Cross constellation.
- The Jewel Box star cluster, found within the Southern Cross, serves as a guide to locate Omega Centauri, a globular cluster with approximately 10 million stars.
- For the best view, a telescope is recommended to observe the globe-shaped stellar city of Omega Centauri.
- Omega Centauri is most remarkable due to being visible without optics and containing some of the Milky Way's oldest stars.
- Observing Spica and Omega Centauri at their highest points in the sky allows for an optimal viewing experience of these celestial objects.
- Using Spica or the Southern Cross as guides, enthusiasts can enjoy the beauty and splendor of the Omega Centauri globular cluster, a captivating astronomical sight.
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Guardian
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Image Credit: Guardian
Swollen eyeballs, baby-like skin, and the overview effect: how astronauts feel when they return to earth
- NASA and SpaceX are launching a mission to retrieve astronauts Barry "Butch" Wilmore and Suni Williams after a prolonged stay at the International Space Station.
- Extended periods in space lead to bone density loss, muscle wasting, blood volume reduction, changed blood flow, and fluid build-up in astronauts' heads.
- Returning astronauts may feel like they've kicked a nine-month cold, struggle to walk, experience dizziness, and have weakened vision.
- Astronauts may need glasses for life due to changes in eyeball shape and vision after space missions.
- Reconditioning after space travel is akin to intense physiotherapy; it is tiring and aims to strike a balance between strength and fatigue.
- Extended space stays expose astronauts to radiation, increasing cancer risks, with challenges in protecting against radiation during longer missions.
- Astronauts may experience 'the overview effect' - a deep sense of connection to humanity and Earth after seeing it from space, leading to mixed feelings upon return.
- Anxiety, depression, and challenges adapting to normal life on Earth are common post-space travel.
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Digitaltrends
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Image Credit: Digitaltrends
Blue Ghost’s moon landing shown in dramatic new footage
- A new video released by NASA's Langley Research Center shows the Blue Ghost lander's powerful engine plumes interacting with the moon's surface during landing.
- The video was recorded by the lander's SCALPSS instrument, which comprises six cameras and is part of NASA's CLPS initiative.
- The footage provides useful before-and-after data and is expected to inform future missions to the moon.
- The Blue Ghost mission aims to study lunar regolith, test new technologies, and inspire future generations of scientists and engineers.
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The Robot Report
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National Robotics Programme launches RoboNexus to help Singapore startups
- The National Robotics Programme in Singapore has launched RoboNexus, an accelerator program to support robotics startups and SMEs.
- RoboNexus aims to provide mentorship, business development support, and access to global markets for local startups.
- Singapore ranks second globally in robot density, with 770 robots per 10,000 workers.
- The NRP focuses on funding user-driven research and development to grow Singapore's robotics talent pool.
- RoboNexus participants include companies like LionsBot, KABAM Robotics, dConstruct Robotics, Spinoff Robotics, XSQUARE Technologies, and Globotix.
- The accelerator program has facilitated collaborations, product development acceleration, and global market insights for robotics companies.
- RoboNexus has played a crucial role in driving expansion and strategic partnerships for startups like dConstruct Robotics.
- The launch of RoboNexus welcomes registrations from Singapore-based robotics companies and those seeking to establish operations in Singapore.
- RoboSG! 2025 showcased over 75 robots across eight thematic zones, emphasizing industry engagement and inspiring future robotics talent.
- The event hosted by Punggol Digital District featured live robot demonstrations for security, facility management, delivery, healthcare, and wellness.
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Knowridge
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Image Credit: Knowridge
Black holes spew out powerful jets that span millions of light-years – we’re trying to understand their whole life cycle
- Supermassive black holes in galaxies can awaken and spew out powerful jets of material at near-light speeds.
- These jets, known as fountains, emit radio signals and can reach enormous distances, spanning millions of light-years.
- A recent study used supercomputers to simulate the behavior of giant cosmic jets, providing insights into their evolution over hundreds of millions of years.
- Understanding the mechanisms behind these jets not only contributes to the knowledge of radio galaxies but also helps unravel the broader processes shaping the universe.
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Metro
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Image Credit: Metro
Supernovas may have caused mass extinctions that killed 85% of life on Earth
- Supernova explosions may have caused mass extinctions, wiping out up to 85% of animals on Earth, according to a new study.
- Supernovas are the most energetic explosions in the universe and if one were to occur close to Earth, it would be devastating for life.
- A research team conducted a census of supernovas within the Milky Way and found a correlation between the rate of massive star formation and mass extinction events on Earth.
- Supernova explosions can strip the Earth's atmosphere of ozone, exposing the planet to fatal levels of ultraviolet radiation and causing long-lasting damage.
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Brighter Side of News
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Image Credit: Brighter Side of News
Mars Rover Discovers Traces of Ancient Martian Beaches
- Groundbreaking research based on radar scans from China’s Zhurong rover has uncovered compelling evidence of ancient Martian beaches beneath the surface of Utopia Planitia.
- The discovery strengthens the case for a past Martian ocean and hints at conditions conducive to life, indicating Mars may have once hosted Earth-like coastlines.
- The Zhurong rover, equipped with the Rover Penetrating Radar (RoPeR), detected rock formations in patterns resembling coastal environments on Earth.
- Layers of sediment bearing no signs of river or wind erosion suggest the presence of ancient shorelines shaped by waves and tides on Mars.
- The radar data compared with Earth's coastal deposits revealed similarities, indicating a dynamic interaction between land and water on Mars.
- This finding suggests Mars had a long-standing ocean during the Late Hesperian period, supporting the idea of a wetter Martian past transitioning to its current arid state.
- The discovery of ancient shorelines on Mars provides new insights into the planet's geological evolution, revealing sustained coastal processes over time.
- The Martian ocean covering a significant portion of the northern hemisphere could have supported liquid water and potentially life-friendly conditions for millions of years.
- The presence of wave activity in the ancient Martian ocean raises possibilities for the search for signs of past life in these coastal environments.
- Future missions, such as Mars Sample Return, may further investigate these areas, potentially uncovering organic molecules or microbial fossils that could indicate past life on Mars.
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Livescience
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Image Credit: Livescience
128 new moons discovered orbiting Saturn, nearly doubling the ringed planet's total
- Astronomers have discovered 128 never-before-seen moons orbiting Saturn, nearly doubling the planet's total.
- Saturn now has a total of 274 known natural satellites, making it the 'moon king' of the solar system.
- The newly discovered moons are small in size and considered irregular, likely formed from larger moons that collided with other moons or passing comets.
- The discovery was made using the Canada France Hawaii Telescope, and the researchers believe Jupiter will never catch up in terms of moon count.
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Nasa
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Image Credit: Nasa
Navigating a Slanted River
- NASA's Mars Perseverance rover captured an image of the 'Slants River' target using its SHERLOC WATSON camera, despite the target fracturing after being abraded.
- The rover's instrumentation includes cameras, spectrometers, and a laser for searching for organics and minerals altered by water.
- Perseverance's Science Team explored the Broom Point workspace to collect the Main River sample, studying distinct layers for geological insights.
- The rock at Broom Point fractured during abrasion, posing challenges for instruments like SHERLOC and PIXL in conducting scans.
- Engineers used WATSON, SHERLOC's companion camera, to assess the topography and successfully conducted proximity science on the broken surface.
- After completing the abrasion proximity science, Perseverance drilled and sealed the Main River core without issues, moving on to the next workspace.
- The Science Team aims to analyze the composition and emplacement of materials encountered, furthering scientific exploration on Mars.
- Perseverance's efforts showcase determination in overcoming obstacles and gathering valuable data for future analyses.
- The rover's continuous exploration exemplifies the commitment to unraveling Mars' geological history and potential signs of past microbial life.
- Overall, the mission progresses with Perseverance navigating challenging terrains on Mars, paving the way for significant scientific discoveries.
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Nasa
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Image Credit: Nasa
Station Crew Keeps Up Advanced Space Research, Waits for Crew-10 Mission
- The SpaceX Crew-10 mission to the International Space Station (ISS) is delayed due to a ground issue at the launchpad.
- Meanwhile, the ISS crew continues to conduct microgravity research in areas such as robotics, combustion, and adaptation to weightlessness.
- The Falcon 9 rocket hydraulic system issue is being investigated, and Crew-10 is now targeted to launch on Friday.
- During this time, the ISS crew carried out various scientific experiments, including testing a robotic free-flyer and studying combustion and flammability in space.
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Digitaltrends
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Image Credit: Digitaltrends
James Webb captures a stunning view of the dreamy Flame Nebula
- The James Webb Space Telescope captures a stunning view of the Flame Nebula, revealing a new perspective on this emission nebula in the Orion constellation.
- Researchers focused on studying brown dwarfs within the Flame Nebula to understand the boundary between stars and brown dwarfs.
- The study aimed to determine the mass limit required for an object to start fusion and become a star.
- Three low-mass objects, colder than protostars, were highlighted in the Webb image, showcasing the sensitivity of Webb's instruments.
- Stars and brown dwarfs form from molecular clouds, and the heat they radiate influences whether they become stars or brown dwarfs.
- The transition from star to brown dwarf may occur at around two to three times the mass of Jupiter.
- Data from Hubble and Webb complement each other in studying brown dwarfs, with Webb providing new insights.
- The research signifies a significant advancement in understanding low-mass objects in star-forming regions.
- The findings are published in The Astrophysical Journal Letters, showcasing Webb's contribution to astronomical research.
- The collaboration between Hubble and Webb presents extensive possibilities for exploring and comprehending celestial objects.
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Nasa
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Image Credit: Nasa
NASA Researchers Study Coastal Wetlands, Champions of Carbon Capture
- NASA researchers are studying coastal wetlands to understand their impact on atmospheric levels of carbon dioxide (CO2) and methane, as part of the BlueFlux Campaign.
- Coastal wetlands, despite covering less than 2% of the planet's land, remove a significant amount of carbon dioxide from the atmosphere, with Florida's coastal wetlands alone estimated to remove 31.8 million metric tons annually.
- The research aims to develop models to estimate and monitor greenhouse gas concentrations globally by studying how wetland vegetation responds to environmental factors like rising temperatures and sea levels.
- Blue carbon, stored in oceans and wetlands, offers opportunities for climate mitigation but requires conservation efforts supported by science to prevent carbon loss.
- Methane, produced in wetland soils, is a potent greenhouse gas released as wetland conditions change, impacting the gas exchange between vegetation and the atmosphere.
- Understanding the relationship between wetland health and gaseous flux, including methane production, is crucial for monitoring the impact of ecological changes on global carbon dioxide and methane levels.
- Despite Florida's wetlands acting as a net climate benefit currently, ongoing climate disturbances could alter their role in greenhouse gas flux.
- Historic rates of blue carbon development in mangrove forests are being identified using core samples, aiding in evaluating carbon storage responses to environmental pressures.
- NASA's BlueFlux campaign contributes to understanding wetland ecology changes and restoration efforts in South Florida to protect vital natural resources and support the local ecosystem.
- The future of South Florida's wetlands, crucial for carbon storage, water supply, and unique biodiversity, relies on sound science and management to ensure coexistence with human activities.
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