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Earth Sciences Jun 14, 2024

NOAA forecasts above-average summer 'dead zone' in Gulf of Mexico

NOAA is forecasting an above-average summer "dead zone" in the Gulf of Mexico covering approximately 5,827 square miles—an area roughly the size of Connecticut. The dead zone, or hypoxic area, is an area of low oxygen that ...

Biotechnology Jun 14, 2024

Novel insights into fluorescent 'dark states' illuminate ways forward for improved imaging

Scientists at St. Jude Children's Research Hospital have reported a way to improve molecular scale distance measurements using single-molecule fluorescence resonance energy transfer (smFRET). smFRET quantifies the excitation ...

Environment Jun 14, 2024

Researchers harvest acid from seawater to feed beneficial algae

From the air you breathe to the seafood you eat, marine algae have some involvement—they consume carbon dioxide and produce oxygen through photosynthesis and feed fish and shellfish. One day, marine algae could also be ...

Analytical Chemistry Jun 14, 2024

New photocatalytic COFs mimic photosynthesis for H₂O₂ production

National University of Singapore (NUS) chemists have developed hexavalent photocatalytic covalent organic frameworks (COFs) which mimic natural photosynthesis for the production of hydrogen peroxide (H2O2), an important industrial ...

Nanomaterials Jun 14, 2024

New method links graphene nanolayers for tougher, elastic films

Layers of carbon atoms in a honeycomb array are a true supermaterial: their unusually high conductivity and favorable mechanical properties could further the development of bendable electronics, new batteries, and innovative ...

Ecology Jun 13, 2024

Giant deep-sea vent tubeworm symbionts use two carbon fixation pathways to grow at record speeds

In the deep-sea environment of the East Pacific Rise, where sunlight does not penetrate and the surroundings are known for their extreme temperatures, skull-crushing pressures, and toxic compounds, lives Riftia pachyptila, ...

Earth Sciences Jun 13, 2024

Ancient ocean slowdown warns of future climate chaos

When it comes to the ocean's response to global warming, we're not in entirely uncharted waters. A UC Riverside study shows that episodes of extreme heat in Earth's past caused the exchange of waters from the surface to the ...

Analytical Chemistry Jun 13, 2024

A first look inside radium's solid-state chemistry

For the first time in history, scientists have measured radium's bonding interactions with oxygen atoms in an organic molecule. Scientists have not measured this bonding before because radium-226 is available only in small ...

Evolution Jun 12, 2024

Discovery of microfossil in China from the 518-million-year-old Qingjiang biota sheds light on adaptive evolution

Microbial sulfate reduction dating back to the Paleoarchean plays a crucial role in driving global carbon and sulfur cycles in ancient and modern Earth. Over 150 species of sulfate reducers from bacterial and archaeal phyla ...

Plants & Animals Jun 12, 2024

Research finds dolphins with elevated mercury levels in Florida and Georgia

In a study with potential implications for the oceans and human health, scientists have reported elevated mercury levels in dolphins in the U.S. Southeast, with the greatest levels found in dolphins in Florida's St. Joseph ...

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