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Phys.org / First steps: America's grueling second spacewalk
One year after Gemini IV astronaut Edward H. White completed NASA's first spacewalk the agency prepared for a demanding second excursion. Originally scheduled for Gemini VIII, the extravehicular activity (EVA) was reassigned ...
Phys.org / Easily overlooked small wetlands are a big source of global methane
Waterlogged land areas such as marshes, bogs and fens are the world's largest natural source of methane. Even the smallest of wetlands emit this powerful greenhouse gas. In a study from The University of Texas at Austin, ...
Phys.org / Smarter land use could unlock biodiversity, climate and economic gains across 146 countries
National governments and multilateral institutions face difficult challenges reconciling environmental goals, such as biodiversity conservation and addressing climate change, with economic development goals. In a first-of-its-kind ...
Medical Xpress / Experts highlight limits of evidence from ultraprocessed food trials
A group of eating behavior and metabolism experts from across Europe have published a Perspective article in the journal Science examining the limitations of current evidence on ultraprocessed foods (UPFs).
Phys.org / AI-guided catalyst turns CO₂ and waste into fertilizer at industrially relevant rates
Researchers from the National University of Singapore (NUS) have developed a computation-guided strategy to produce urea more efficiently from carbon dioxide and nitrate. By combining large language models, density functional ...
Phys.org / What makes 15-minute cities work? More nearby jobs and connected streets
The concept of the "15-Minute City" has gained global traction as a blueprint for more livable, sustainable communities by placing daily essentials—such as grocery stores, schools, restaurants and parks—within easy reach ...
Phys.org / Leak on space station triggers brief safety alert
Astronauts working on the International Space Station briefly sheltered in a docked capsule Friday as Russian colleagues assessed leak repairs, NASA said.
Phys.org / A giant star may have destroyed itself in one of the universe's rarest explosions
Astronomers may have discovered one of the clearest examples yet of a rare "pair-instability" supernova. It is a catastrophic explosion thought to completely destroy some of the most massive stars in the universe, leaving ...
Phys.org / Study shows indoor air contains greater diversity of airborne fungi than previously thought
Researchers from Imperial College London have conducted the U.K.'s largest-ever longitudinal study of indoor fungal air pollution, revealing that homes are active fungal ecosystems rather than passive recipients of outdoor ...
Phys.org / Webb unveils young stars across every stage of formation
For this NASA/ESA/CSA James Webb Space Telescope Picture of the Month, we return to the constellation Orion (the Hunter), a location familiar to Webb. This area of the sky is replete with star-forming clouds that make up ...
Phys.org / Molecular glasses solve long-standing Arrhenius paradox
Glasses are non-crystalline but solid states of matter in which molecules and atoms are not arranged into a regular crystal lattice, but rather in a disordered pattern. Glassy materials are widely used in various settings, ...
Tech Xplore / AI model predicts building fire spread, redirecting evacuees to safer exits in real time
A fire alarm jolts you from your office desk, and you head for the nearest exit. But what if the closest exit has already been blocked by the fire? Researchers at the National Institute of Standards and Technology (NIST) ...
