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Categories: Environmental: Water, Space: Astronomy

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Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: The Solar System
Published

'Starquakes' could explain mystery signals      (via sciencedaily.com)     Original source 

Fast radio bursts, or FRBs, are an astronomical mystery, with their exact cause and origins still unconfirmed. These intense bursts of radio energy are invisible to the human eye, but show up brightly on radio telescopes. Previous studies have noted broad similarities between the energy distribution of repeat FRBs, and that of earthquakes and solar flares. However, new research has looked at the time and energy of FRBs and found distinct differences between FRBs and solar flares, but several notable similarities between FRBs and earthquakes. This supports the theory that FRBs are caused by 'starquakes' on the surface of neutron stars. This discovery could help us better understand earthquakes, the behavior of high-density matter and aspects of nuclear physics.

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

Finding explanation for Milky Way's warp      (via sciencedaily.com)     Original source 

Though scientists have long known through observational data that the Milky Way is warped and its edges are flared like a skirt, no one could explain why. Now, astronomers have performed the first calculations that fully explain this phenomenon, with compelling evidence pointing to the Milky Way's envelopment in an off-kilter halo of dark matter. 

Chemistry: General Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry Physics: Optics
Published

Titanium oxide material can remove toxic dyes from wastewater      (via sciencedaily.com)     Original source 

Discharged in large quantities by textile, cosmetic, ink, paper and other manufacturers, dyes carry high-toxicity and can bring potential carcinogens to wastewater. It’s a major concern for wastewater treatment — but researchers may have found a solution, using a tiny nanofilament.

Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography Geoscience: Severe Weather Paleontology: Climate Paleontology: General
Published

Paleoclimatologists use ancient sediment to explore future climate in Africa      (via sciencedaily.com)     Original source 

With global warming apparently here to stay, a team of paleoclimatologists are studying an ancient source to determine future rainfall and drought patterns: fossilized plants that lived on Earth millions of years ago.

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

Stellar fountain of youth with turbulent formation history in the center of our galaxy      (via sciencedaily.com)     Original source 

An unexpectedly high number of young stars has been identified in the direct vicinity of a supermassive black hole and water ice has been detected at the center of our galaxy.

Space: Astronomy Space: Exploration Space: General Space: The Solar System
Published

Source of electron acceleration and X-ray aurora of Mercury local chorus waves detected      (via sciencedaily.com)     Original source 

Observations during two flybys by the Mio spacecraft as part of the BepiColombo International Mercury Exploration Project have revealed that chorus waves occur quite locally in the dawn sector of Mercury. Mercury's magnetic field is about 1% of that of Earth, and it was unclear whether chorus waves would be generated like on Earth. The present study reveals that the chorus waves are the driving source of Mercury's X-ray auroras, whose mechanism was not understood.

Chemistry: Biochemistry Chemistry: General Energy: Alternative Fuels Energy: Technology Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Modular dam design could accelerate the adoption of renewable energy      (via sciencedaily.com)     Original source 

Scientists have developed a new modular steel buttress dam system designed to resolve energy storage issues hindering the integration of renewable resources into the energy mix. The new modular steel buttress dam system facilitates the rapid construction of paired reservoir systems for grid-scale energy storage and generation using closed-loop pumped storage hydropower, cutting dam construction costs by one-third and reducing construction schedules by half.

Chemistry: Inorganic Chemistry Engineering: Nanotechnology Environmental: General Environmental: Water Geoscience: Environmental Issues
Published

Ecotoxicity testing of micro- and nano-plastics      (via sciencedaily.com)     Original source 

An international team of researchers has published the first harmonized exposure protocol for ecotoxicity testing of microplastics and nanoplastics.

Biology: Marine Ecology: Sea Life Environmental: Ecosystems Environmental: Water Geoscience: Geochemistry Geoscience: Geography
Published

Discovery of invisible nutrient discharge on Great Barrier Reef raises concerns      (via sciencedaily.com)     Original source 

Scientists using natural tracers off Queensland’s coast have discovered the source of previously unquantified nitrogen and phosphorus having a profound environmental impact on the Great Barrier Reef. Groundwater discharge accounted for approximately one-third of new nitrogen and two-thirds of phosphorus inputs, indicating that nearly twice the amount of nitrogen enters the Reef from groundwater compared to river waters.

Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography Geoscience: Severe Weather Paleontology: Climate
Published

The Gulf Stream is warming and shifting closer to shore      (via sciencedaily.com)     Original source 

The Gulf Stream is intrinsic to the global climate system, bringing warm waters from the Caribbean up the East Coast of the United States. As it flows along the coast and then across the Atlantic Ocean, this powerful ocean current influences weather patterns and storms, and it carries heat from the tropics to higher latitudes as part of the Atlantic Meridional Overturning Circulation.  A new study now documents that over the past 20 years, the Gulf Stream has warmed faster than the global ocean as a whole and has shifted towards the coast. The study relies on over 25,000 temperature and salinity profiles collected between 2001 and 2023.  

Ecology: Endangered Species Environmental: General Environmental: Water Geoscience: Environmental Issues Paleontology: Climate
Published

Ancient Maya reservoirs offer lessons for today's water crises      (via sciencedaily.com)     Original source 

Ancient Maya reservoirs, which used aquatic plants to filter and clean the water, 'can serve as archetypes for natural, sustainable water systems to address future water needs.' The Maya built and maintained reservoirs that were in use for more than 1,000 years. These reservoirs provided potable water for thousands to tens of thousands of people in cities during the annual, five-month dry season and in periods of prolonged drought.

Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography Paleontology: Climate
Published

Deciphering the intensity of past ocean currents      (via sciencedaily.com)     Original source 

Ocean currents determine the structure of the deep-sea ocean floor and the transport of sediments, organic carbon, nutrients and pollutants. In flume-tank experiments, researchers have simulated how currents shape the seafloor and control sediment deposition. This will help in reconstructions of past marine conditions.

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

Pulsars may make dark matter glow      (via sciencedaily.com)     Original source 

The central question in the ongoing hunt for dark matter is: what is it made of? One possible answer is that dark matter consists of particles known as axions. A team of astrophysicists has now shown that if dark matter consists of axions, it may reveal itself in the form of a subtle additional glow coming from pulsating stars.

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

Plot thickens in hunt for ninth planet      (via sciencedaily.com)     Original source 

A pair of theoretical physicists are reporting that the same observations inspiring the hunt for a ninth planet might instead be evidence within the solar system of a modified law of gravity originally developed to understand the rotation of galaxies.

Anthropology: Early Humans Anthropology: General Environmental: Ecosystems Environmental: Water Geoscience: Geography
Published

Early human migrants followed lush corridor-route out of Africa      (via sciencedaily.com)     Original source 

Scientists have found early human migrants left Africa for Eurasia, across the Sinai peninsula and on through Jordan, over 80-thousand years ago. Researchers have proved there was a 'well-watered corridor' which funneled hunter-gatherers through The Levant towards western Asia and northern Arabia via Jordan.

Biology: Botany Biology: Microbiology Biology: Zoology Ecology: Endangered Species Ecology: Invasive Species Environmental: Ecosystems Environmental: Water
Published

Meadow Spittlebug's record-breaking diet also makes it top disease carrier for plants      (via sciencedaily.com)     Original source 

New research fueled in part by citizen scientists reveals that the meadow spittlebug—known for the foamy, spit-like urine released by its nymphs—can feed on at least 1,300 species of host plants, more than twice the number of any other insect.

Chemistry: General Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Staying dry for months underwater      (via sciencedaily.com)     Original source 

Researchers have developed a superhydrophobic surface with a stable plastron that can last for months under water. The team’s general strategy to create long-lasting underwater superhydrophobic surfaces, which repel blood and drastically reduce or prevent the adhesion of bacterial and marine organisms such as barnacles and mussels, opens a range of applications in biomedicine and industry.

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

Ancient carbon in rocks releases as much carbon dioxide as the world's volcanoes      (via sciencedaily.com)     Original source 

New research has overturned the traditional view that natural rock weathering acts as a carbon sink that removes CO2 from the atmosphere. Instead, this can also act as a large CO2 source, rivaling that of volcanoes.