Showing 20 articles starting at article 501

< Previous 20 articles        Next 20 articles >

Categories: Geoscience: Geochemistry, Space: Astronomy

Return to the site home page

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

Toxic metal particles can be present in cannabis vapes even before the first use, study finds      (via sciencedaily.com)     Original source 

Though vapes have been heralded as a 'safer' way to consume either nicotine or cannabis, they present their own suite of risks that are being revealed through increasing regulation. Now, scientists have discovered that nano-sized toxic metal particles can be present in cannabis vaping liquids even before any heating occurs, and the effect is worse in illicit products.

Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geography Geoscience: Geology Geoscience: Oceanography
Published

From the Mediterranean into the Atlantic: The Gibraltar arc is migrating to the west      (via sciencedaily.com)     Original source 

Oceans are subject to continuous change, mostly over extremely vast periods of time running into millions of years. Researchers have now used computer simulations to demonstrate that a subduction zone originating in the Western Mediterranean will propagate into the Atlantic under the Strait of Gibraltar. According to their model, this will create a new Atlantic subduction zone 50 million years into the future, which will then move down into the Earth's mantle. The new geodynamic model explains the evolution of the Gibraltar subduction zone and its likely development, which will contribute to the renewal of the Atlantic Ocean floor.

Space: Astronomy Space: Exploration Space: General
Published

Simulated microgravity effects cause marked changes in gene expression rhythms in humans, study finds      (via sciencedaily.com)     Original source 

Simulated effects of microgravity, created by 60 days of constant bed rest, severely disrupts rhythmic gene expression in humans, according to a new study.

Biology: Biochemistry Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Ecology: Animals Geoscience: Geochemistry
Published

Genes identified that allow bacteria to thrive despite toxic heavy metal in soil      (via sciencedaily.com)     Original source 

Some soil bacteria can acquire sets of genes that enable them to pump the heavy metal nickel out of their systems, a study has found. This enables the bacteria to not only thrive in otherwise toxic soils but help plants grow there as well. A research team pinpointed a set of genes in wild soil bacteria that allows them to do this in serpentine soils which have naturally high concentrations of toxic nickel. The genetic discovery could help inform future bioremediation efforts that seek to return plants to polluted soils.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Alternative Fuels Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geology Geoscience: Oceanography
Published

Harnessing hydrogen at life's origin      (via sciencedaily.com)     Original source 

A new report uncovers how hydrogen gas, the energy of the future, provided energy in the past, at the origin of life 4 billion years ago. Hydrogen gas is clean fuel. It burns with oxygen in the air to provide energy with no CO2. Hydrogen is a key to sustainable energy for the future. Though humans are just now coming to realize the benefits of hydrogen gas (H2 in chemical shorthand), microbes have known that H2 is good fuel for as long as there has been life on Earth. Hydrogen is ancient energy.

Chemistry: General Energy: Batteries Energy: Technology Engineering: Nanotechnology Environmental: General Geoscience: Geochemistry
Published

Fast-charging lithium-sulphur batteries on the horizon      (via sciencedaily.com)     Original source 

New research shows that the next generation of lithium-sulphur (Li||S) batteries may be capable of being charged in less than five minutes, instead of several hours as is currently the case.

Biology: Marine Ecology: Nature Ecology: Sea Life Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Paleontology: Climate
Published

A wetter world recorded in Australian coral colony      (via sciencedaily.com)     Original source 

When climate scientists look to the future to determine what the effects of climate change may be, they use computer models to simulate potential outcomes such as how precipitation will change in a warming world. Some scientists are also looking at something a little more tangible: coral.

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

Largest-ever map of universe's active supermassive black holes released      (via sciencedaily.com)     Original source 

Astronomers have charted the largest-ever volume of the universe with a new map of active supermassive black holes living at the centers of galaxies. Called quasars, the gas-gobbling black holes are, ironically, some of the universe's brightest objects. The new map logs the location of about 1.3 million quasars in space and time, the furthest of which shone bright when the universe was only 1.5 billion years old. The work could help scientists better understand the properties of dark matter.

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

Transforming wood waste for sustainable manufacturing      (via sciencedaily.com)     Original source 

Research is exploring how to add value to lignin by breaking it down into small molecules that are structurally similar to oxygenated hydrocarbons. These renewable chemicals are key components in many industrial processes and products, but they are traditionally sourced from non-renewable petroleum.

Environmental: Water Geoscience: Geochemistry
Published

Study estimates nearly 70 percent of children under six in Chicago may be exposed to lead-contaminated tap water      (via sciencedaily.com)     Original source 

A new analysis estimates that 68 percent of Chicago children under age six live in households with tap water containing detectable levels of lead.

Biology: Biochemistry Biology: Marine Biology: Microbiology Ecology: Sea Life Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geography Geoscience: Geology Geoscience: Oceanography
Published

Even inactive smokers are densely colonized by microbial communities      (via sciencedaily.com)     Original source 

Everything is everywhere -- under certain conditions microbial communities can grow and thrive, even in places that are seemingly uninhabitable. This is the case at inactive hydrothermal vents on the sea floor. An international team is presently working to accurately quantify how much inorganic carbon can be bound in these environments.

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

New research suggests that our universe has no dark matter      (via sciencedaily.com)     Original source 

A new study challenges the current model of the universe by showing that, in fact, it has no room for dark matter.

Biology: Marine Biology: Zoology Ecology: Endangered Species Ecology: Sea Life Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography
Published

Groundbreaking study reveals extensive leatherback turtle activity along U.S. coastline      (via sciencedaily.com)     Original source 

A new study provides groundbreaking findings that offer insights on the migration and foraging patterns of leatherback sea turtles along the Northwest Atlantic shelf.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Genetics Biology: Microbiology Environmental: General Geoscience: Geochemistry Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
Published

It's hearty, it's meaty, it's mold      (via sciencedaily.com)     Original source 

Scientists are exploring how tuning the genomes of mushrooms and molds can transform these food sources into gourmet, nutrient-packed meals made with minimal processing and a light environmental footprint.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular Environmental: Water Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geology
Published

Sulfur and the origin of life      (via sciencedaily.com)     Original source 

A new study shines a spotlight on sulfur, a chemical element that, while all familiar, has proved surprisingly resistant to scientific efforts in probing its role in the origin of life.

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

Cheers! NASA's Webb finds ethanol, other icy ingredients for worlds      (via sciencedaily.com)     Original source 

What do margaritas, vinegar, and ant stings have in common? They contain chemical ingredients that NASA's James Webb Space Telescope has identified surrounding two young protostars known as IRAS 2A and IRAS 23385. Although planets are not yet forming around those stars, these and other molecules detected there by Webb represent key ingredients for making potentially habitable worlds.

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

Explaining a supernova's 'string of pearls'      (via sciencedaily.com)     Original source 

Physicists often turn to the Rayleigh-Taylor instability to explain why fluid structures form in plasmas, but that may not be the full story when it comes to the ring of hydrogen clumps around supernova 1987A, research suggests. It looks like the same mechanism that breaks up airplane contrails might be at play in forming the clumps of hydrogen gas that ring the remnant of supernova 1987A.