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Categories: Geoscience: Earth Science, Space: Astronomy

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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.

Chemistry: Thermodynamics Environmental: General Geoscience: Earth Science Geoscience: Earthquakes
Published

Rock permeability, microquakes link may be a boon for geothermal energy      (via sciencedaily.com)     Original source 

Using machine learning, researchers have tied low-magnitude microearthquakes to the permeability of subsurface rocks beneath the Earth, a discovery that could have implications for improving geothermal energy transfer.

Anthropology: Cultures Anthropology: General Archaeology: General Geoscience: Earth Science Geoscience: Geography
Published

Pacific cities much older than previously thought      (via sciencedaily.com)     Original source 

New evidence of one of the first cities in the Pacific shows they were established much earlier than previously thought, according to new research. The study used aerial laser scanning to map archaeological sites on the island of Tongatapu in Tonga, showing Earth structures were being constructed in Tongatapu around AD 300.

Anthropology: Cultures Anthropology: General Archaeology: General Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Space Space: Astronomy Space: General Space: The Solar System
Published

The hidden role of the Milky Way in ancient Egyptian mythology      (via sciencedaily.com)     Original source 

Astrophysicists shed light on the relationship between the Milky Way and the Egyptian sky-goddess Nut. The paper draws on ancient Egyptian texts and simulations to argue that the Milky Way might have shone a spotlight, as it were, on Nut's role as the sky. It proposes that in winter, the Milky Way highlighted Nut's outstretched arms, while in summer, it traced her backbone across the heavens.

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

Novel UV broadband spectrometer revolutionizes air pollutant analysis      (via sciencedaily.com)     Original source 

A research team has developed a broadband UV dual-comb spectrometer with which air pollutants can be continually measured and their reaction with the environment can be observed in real time.

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

New approach needed to save Australia's non-perennial rivers      (via sciencedaily.com)     Original source 

An extensive review of current research incorporating geomorphology, hydrology, biogeochemistry, ecology and Indigenous knowledges identifies prevailing factors that shape water and energy flows in Australia's non-perennial rivers -- but the review also points to research deficiencies that must be addressed if these river systems are to be preserved and protected.

Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Severe Weather
Published

Scientist helps link climate change to Madagascar's megadrought      (via sciencedaily.com)     Original source 

A team reveals a clear link between human-driven climate change and the years-long drought currently gripping southern Madagascar.

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

Boreal forest and tundra regions worst hit over next 500 years of climate change, study shows      (via sciencedaily.com)     Original source 

Modelling climate change over a 500 year period shows that much of the boreal forest, the Earth's northernmost forests and most significant provider of carbon storage and clean water, could be seriously impacted, along with tundra regions, treeless shrublands north of the boreal forest that play a significant role in regulating the Earth's climate.

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

Inexplicable flying fox found in Hydra galaxy cluster      (via sciencedaily.com)     Original source 

High sensitivity radio observations have discovered a cloud of magnetized plasma in the Hydra galaxy cluster. The odd location and shape of this plasma defy all conventional explanations. Dubbed the Flying Fox based on its silhouette, this plasma will remain a mystery until additional observations can provide more insight.

Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Paleontology: Climate Space: Cosmology Space: General Space: The Solar System
Published

Climate change threatens Antarctic meteorites      (via sciencedaily.com)     Original source 

Antarctica harbors a large concentration of meteorites imbuing the icy continent with an unparalleled wealth of information on our solar system. However, these precious meteorites are rapidly disappearing from the ice sheet surface due to global warming, according to a new study.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General
Published

Telescope detects unprecedented behavior from nearby magnetar      (via sciencedaily.com)     Original source 

Captured by cutting-edge radio telescope technology, a chance reactivation of a magnetar -- the Universe's most powerful magnets -- has revealed an unexpectedly complex environment.

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

Ocean waves propel PFAS back to land      (via sciencedaily.com)     Original source 

A new study reveals that PFAS re-emit into the air from crashing ocean waves at levels comparable to or greater than other sources, establishing a cyclical transport process for these 'forever chemicals' between land and sea.

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

Neutron stars are key to understanding elusive dark matter      (via sciencedaily.com)     Original source 

Scientists may be one step closer to unlocking one of the great mysteries of the universe after calculating that neutron stars might hold a key to helping us understand elusive dark matter.

Biology: General Biology: Zoology Ecology: Animals Ecology: Endangered Species Ecology: Extinction Ecology: General Ecology: Nature Ecology: Research Environmental: Biodiversity Environmental: Ecosystems Geoscience: Earth Science Geoscience: Geography
Published

Four in five bird species cannot tolerate intense human pressures      (via sciencedaily.com)     Original source 

In a recent study, researchers found that 78% of the world's bird species do not thrive in the most modified human-dominated environments. These species are also most likely to have declining populations.

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

CHEOPS detects a 'rainbow' on an exoplanet      (via sciencedaily.com)     Original source 

The CHEOPS space telescope is providing new information on the mysterious exoplanet WASP-76b. This ultra-hot giant is characterized by an asymmetry between the amount of light observed on its eastern terminator -- the fictitious line that separates its night side from its day side -- and that observed on its western terminator. This peculiarity is thought to be due to a 'glory', a luminous phenomenon similar to a rainbow, which occurs if the light from the star -- the 'sun' around which the exoplanet orbits -- is reflected by clouds made up of a perfectly uniform substance. If this hypothesis is confirmed, this would be the first detection of this phenomenon outside our solar system.

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

Ocean floor a 'reservoir' of plastic pollution      (via sciencedaily.com)     Original source 

New science has taken a deep dive into plastic waste, providing the first estimate of how much ends up on the sea floor.