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Categories: Geoscience: Geography, Space: Astronomy

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Environmental: General Environmental: Wildfires Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography
Published

Fires pose growing worldwide threat to wildland-urban interface      (via sciencedaily.com)     Original source 

Fires that devastate wildland-urban interface areas are becoming more common around the globe, a trend that is likely to continue for at least the next two decades, new research finds. Such fires are especially dangerous, both because they imperil large numbers of people and because they emit far more toxins than forest and grassland fires.

Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

No gamma rays seen coming from nearby supernova      (via sciencedaily.com)     Original source 

A nearby supernova in 2023 offered astrophysicists an excellent opportunity to test ideas about how these types of explosions boost particles, called cosmic rays, to near light-speed. But surprisingly, NASA's Fermi Gamma-ray Space Telescope detected none of the high-energy gamma-ray light those particles should produce.

Environmental: General Geoscience: Environmental Issues Geoscience: Geography Geoscience: Severe Weather
Published

Yellowstone Lake ice cover unchanged despite warming climate      (via sciencedaily.com)     Original source 

While most lakes around the world are experiencing shorter durations of ice cover, the length of time that Yellowstone Lake is covered by ice each year has not changed in the past century, possibly due to increased snowfall.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Most massive stellar black hole in our galaxy found      (via sciencedaily.com)     Original source 

Astronomers have identified the most massive stellar black hole yet discovered in the Milky Way galaxy. This black hole was spotted in data from the European Space Agency's Gaia mission because it imposes an odd 'wobbling' motion on the companion star orbiting it. Astronomers have verified the mass of the black hole, putting it at an impressive 33 times that of the Sun.

Environmental: General Geoscience: Environmental Issues Geoscience: Geography
Published

Most countries struggle to meet climate pledges from 2009      (via sciencedaily.com)     Original source 

Nineteen out of 34 countries surveyed failed to fully meet their 2020 climate commitments set 15 years ago in Copenhagen, according to a new study by UCL researchers.

Energy: Technology Environmental: General Geoscience: Environmental Issues Geoscience: Geography
Published

Global North energy outsourcing demands more attention      (via sciencedaily.com)     Original source 

Manufacturing nations in the Global North are stockpiling energy and emission problems by outsourcing energy-intensive industrial processes to countries in the Global South.

Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Geography Geoscience: Oceanography
Published

Hidden threat: Global underground infrastructure vulnerable to sea-level rise      (via sciencedaily.com)     Original source 

As sea levels rise, coastal groundwater is lifted closer to the ground surface while also becoming saltier and more corrosive. A recent study compiled research from experts worldwide showing that in cities where there are complex networks of buried and partially buried infrastructure, interaction with this shallower and saltier groundwater exacerbates corrosion and failure of critical systems such as sewer lines, roadways, and building foundations.

Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography
Published

GeoAI technologies for sustainable urban development      (via sciencedaily.com)     Original source 

From heatwaves to pandemic diseases, the urban environments of the world face numerous challenges. Researchers are harnessing artificial intelligence (AI) and informatics to address emerging concerns related to environmental changes and urban growth.

Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

Physicists solve puzzle about ancient galaxy found by Webb telescope      (via sciencedaily.com)     Original source 

Physicists solve a puzzle linked to JWST-ER1g, a massive ancient galaxy that formed when the universe was just a quarter of its current age.

Environmental: Ecosystems Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography
Published

New radar analysis method can improve winter river safety      (via sciencedaily.com)     Original source 

Researchers have developed a way to use radar to detect open water zones and other changes in Alaska's frozen rivers in the early winter. The approach can be automated to provide current hazard maps and is applicable across the Arctic and sub-Arctic.

Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

Physicists solve puzzle about ancient galaxy found by Webb telescope      (via sciencedaily.com)     Original source 

Physicists solve a puzzle linked to JWST-ER1g, a massive ancient galaxy that formed when the universe was just a quarter of its current age.

Biology: General Biology: Marine Ecology: Endangered Species Ecology: General Ecology: Nature Ecology: Research Ecology: Sea Life Geoscience: Geography Geoscience: Oceanography
Published

Where have all the right whales gone?      (via sciencedaily.com)     Original source 

Marine researchers have mapped the density of one of the most endangered large whale species worldwide, the North Atlantic right whale, using new data to help avoid right whales' harmful exposure to commercial fisheries and vessel strikes. The resulting maps, spanning 20 years of whale observations, are publicly available to inform risk assessments, estimations of whale harm/disturbance, marine spatial planning, and industry regulations to mitigate risk to right whales.

Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography
Published

Retention ponds can deliver a substantial reduction in tire particle pollution      (via sciencedaily.com)     Original source 

New research has shown that the presence of wetlands and retention ponds alongside major highways led to an average reduction of almost 75% in the mass of tire wear particles being discharged to aquatic waters. The researchers say that while the number of retention ponds and wetlands in the UK is quite small, the study has international significance as to the most effective ways to mitigate against the potential impacts of tire pollution on a global scale.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

Brightest gamma-ray burst of all time came from the collapse of a massive star      (via sciencedaily.com)     Original source 

In 2022, astronomers discovered the brightest gamma-ray burst (GRB) of all time. Now, astronomers confirm that a 'normal' supernova, the telltale sign of a stellar collapse, accompanied the GRB. The team also looked for signatures of heavy elements like gold and platinum in the supernova. They found no evidence of such elements, deepening the mystery of their origins.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Stellar winds of three sun-like stars detected for the first time      (via sciencedaily.com)     Original source 

An international research team has for the first time directly detected stellar winds from three Sun-like stars by recording the X-ray emission from their astrospheres, and placed constraints on the mass loss rate of the stars via their stellar winds.

Biology: Marine Ecology: Sea Life Environmental: Water Geoscience: Geography Geoscience: Oceanography
Published

Oceanographers uncover the vital role of mixing down of oxygen in sustaining deep sea health      (via sciencedaily.com)     Original source 

Oceanographers have shown for the first time the important role of the 'mixing down' of oxygen in maintaining healthy conditions in the deep waters.

Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Exoplanets true to size      (via sciencedaily.com)     Original source 

A star's magnetic field must be considered in order to correctly determine the characteristics of exoplanets from observations by space telescopes such as Kepler, James Webb, or PLATO. Researchers show that the distribution of the star's brightness over its disk depends on the star's level of magnetic activity. This, in turn, affects the signature of an exoplanet in observational data. The new model must be used in order to properly interpret the data from the latest generation of space telescopes pointed at distant worlds outside our Solar System.

Biology: Biochemistry Biology: Zoology Ecology: Animals Ecology: Nature Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography
Published

Africa's iconic flamingos threatened by rising lake levels      (via sciencedaily.com)     Original source 

It is one of the world's most spectacular sights -- huge flocks or 'flamboyances' of flamingos around East Africa's lakes -- as seen in the film Out of Africa or David Attenborough's A Perfect Planet. But new research has revealed how the lesser flamingo is at danger of being flushed out of its historic feeding grounds, with serious consequences for the future of the species.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
Published

Beautiful nebula, violent history: Clash of stars solves stellar mystery      (via sciencedaily.com)     Original source 

When astronomers looked at a stellar pair at the heart of a stunning cloud of gas and dust, they were in for a surprise. Star pairs are typically very similar, like twins, but in HD 148937, one star appears younger and, unlike the other, is magnetic. New data suggest there were originally three stars in the system, until two of them clashed and merged. This violent event created the surrounding cloud and forever altered the system's fate.