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Categories: Environmental: Water, Space: General

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Chemistry: Biochemistry Energy: Technology Environmental: General Environmental: Water Geoscience: Environmental Issues
Published

Nanodevices can produce energy from evaporating tap or seawater      (via sciencedaily.com)     Original source 

Researchers have discovered that nanoscale devices harnessing the hydroelectric effect can harvest electricity from the evaporation of fluids with higher ion concentrations than purified water, revealing a vast untapped energy potential.

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

Finding new physics in debris from colliding neutron stars      (via sciencedaily.com)     Original source 

Neutron star mergers are a treasure trove for new physics signals, with implications for determining the true nature of dark matter, according to physicists.

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

Astronomers spot oldest 'dead' galaxy yet observed      (via sciencedaily.com)     Original source 

A galaxy that suddenly stopped forming new stars more than 13 billion years ago has been observed by astronomers. Using the James Webb Space Telescope, astronomers have spotted a 'dead' galaxy when the universe was just 700 million years old, the oldest such galaxy ever observed.

Biology: General Biology: Marine Ecology: Endangered Species Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Ecology: Sea Life Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography
Published

Herbivores, displaced by ocean warming, threaten subtropical seagrass meadows      (via sciencedaily.com)     Original source 

The findings suggest that subtropical seagrasses are less resilient to heavy grazing from marine herbivores, in part because they receive less sunlight relative to their tropical counterparts. As tropical herbivores move into subtropical waters, overgrazing may prevent subtropical seagrass meadows from persisting in these environments.

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

Discovery tests theory on cooling of white dwarf stars      (via sciencedaily.com)     Original source 

Open any astronomy textbook to the section on white dwarf stars and you'll likely learn that they are 'dead stars' that continuously cool down over time. Astronomers are challenging this theory after discovering a population of white dwarf stars that stopped cooling for more than eight billion years.

Biology: Biochemistry Biology: General Environmental: General Environmental: Water Geoscience: Environmental Issues
Published

Research explores the cooling effects of 'scuba-diving' in lizards      (via sciencedaily.com)     Original source 

Anoles are the scuba-diving champions of the lizard world, able to stay underwater for more than 16 minutes. For animals whose body temperature depends on the environment, time spent in a cool running stream can have some tradeoffs, according to new research.

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

Harmful 'forever chemicals' removed from water with new electrocatalysis method      (via sciencedaily.com)     Original source 

Scientists have developed new electrochemical approaches to clean up pollution from 'forever chemicals' found in clothing, food packaging, firefighting foams, and a wide array of other products. A new study describes nanocatalysts developed to remediate per- and polyfluoroalkyl substances, known as PFAS.

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

Space tourism? Cosmic radiation exposure      (via sciencedaily.com)     Original source 

Space weather experts are urging regulators and space tourism innovators to work together to protect their passengers and crews from the risks of space weather radiation exposure.

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

Groundbreaking survey reveals secrets of planet birth around dozens of stars      (via sciencedaily.com)     Original source 

A team of astronomers has shed new light on the fascinating and complex process of planet formation. The research brings together observations of more than 80 young stars that might have planets forming around them, providing astronomers with a wealth of data and unique insights into how planets arise in different regions of our galaxy.

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

What makes black holes grow and new stars form? Machine learning helps solve the mystery      (via sciencedaily.com)     Original source 

It takes more than a galaxy merger to make a black hole grow and new stars form: machine learning shows cold gas is needed too to initiate rapid growth -- new research finds.

Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular Ecology: Sea Life Environmental: General Environmental: Water
Published

Microalgae with unusual cell biology      (via sciencedaily.com)     Original source 

A globally distributed single-celled organism that occurs in harmful algal blooms has been found to exhibit an unusual organisation of photosynthesis. Researchers have taken a closer look at the unusual cell biology of the species Prorocentrum cordatum from the group of dinoflagellates. The results of their study could help to better understand the role of the species in the environment and the increased occurrence of algal blooms at higher water temperatures.

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

Juno spacecraft measures oxygen production on Jupiter's moon, Europa      (via sciencedaily.com)     Original source 

NASA's Juno spacecraft has directly measured charged oxygen and hydrogen molecules from the atmosphere of one of Jupiter's largest moons, Europa. These observations provide key constraints on the potential oxygenation of its subsurface ocean.

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

We know the Arctic is warming -- What will changing river flows do to its environment?      (via sciencedaily.com)     Original source 

Scientists recently combined satellite data, field observations and sophisticated numerical modeling to paint a picture of how 22.45 million square kilometers of the Arctic will change over the next 80 years. As expected, the overall region will be warmer and wetter, but the details -- up to 25% more runoff, 30% more subsurface runoff and a progressively drier southern Arctic, provides one of the clearest views yet of how the landscape will respond to climate change.

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

JWST captures the end of planet formation      (via sciencedaily.com)     Original source 

The James Webb Space Telescope is helping scientists uncover how planets form by advancing understanding of their birthplaces and the circumstellar disks surrounding young stars. Scientists have imaged winds from an old planet-forming disk (still very young relative to the Sun) which is actively dispersing its gas content. Knowing when the gas disperses is important as it constrains the time left for nascent planets to consume the gas from their surroundings.

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

Less ice in the Arctic Ocean has complex effects on marine ecosystems and ocean productivity      (via sciencedaily.com)     Original source 

Most of the sunlight reaching the Arctic Ocean is reflected to space by sea ice, effectively shielding ocean ecosystems from sunlight. As the Arctic sea ice continues its downward trend, larger areas of the ocean become exposed to sunlight for longer periods, potentially allowing more primary production on the seafloor. However, according to a new study, this anticipated increase in primary production does not seem to be occurring uniformly across the Arctic Ocean.

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

Antarctica's coasts are becoming less icy      (via sciencedaily.com)     Original source 

Scientists found unexpected evidence the area of polynyas around Antarctica is increasing dramatically, and it follows an intriguing cycle, growing and shrinking roughly every 16 years.

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

Webb unlocks secrets of one of the most distant galaxies ever seen      (via sciencedaily.com)     Original source 

Looking deeply into space and time, astronomers have studied the exceptionally luminous galaxy GN-z11, which existed when our 13.8 billion-year-old universe was only about 430 million years old.