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Earth Sciences Jun 21, 2024

Many more bacteria produce greenhouse gases than previously thought, study finds

Caltech researchers have discovered a new class of enzymes that enable a myriad of bacteria to "breathe" nitrate when in low-oxygen conditions. While this is an evolutionary advantage for bacterial survival, the process produces ...

Biotechnology Jun 21, 2024

Intricate processes in photosynthesis decoded using advanced electron microscopy technique

Using cryo-electron microscopy, a team of scientists from Humboldt-Universität zu Berlin (HU), the Swedish universities of Umeå and Uppsala and the University of Potsdam has succeeded in visualizing atomic structures at ...

Earth Sciences Jun 21, 2024

Scientists document self-propelling oxygen decline in the oceans

Five hundred million years ago, the so-called Cambrian "SPICE" event made oxygen levels in the oceans drop dramatically.

Analytical Chemistry Jun 21, 2024

Enhancing the performance of proton exchange membrane water electrolysis by constructing electron/proton pathways

The proton exchange membrane electrolysis of water (PEMWE) is a critical process for hydrogen generation. However, the limited ability of electrons and protons to permeate the membrane and the inefficient arrangement of the ...

Astronomy Jun 20, 2024

Simons Observatory begins measurements to probe Big Bang inflation

Almost 14 billion years ago, the universe was born in a blur of mystery. The new Simons Observatory in Chile's Atacama Desert may soon answer the great scientific question of what happened in that tiny fraction of a second ...

Analytical Chemistry Jun 20, 2024

Spectroscopic technique that singles out water molecules lying on the surface reveals how they relax after being excited

A more complete picture of how excited water molecules at an interface with air lose their energy has been uncovered by RIKEN scientists in a study published in the journal Nature Communications. This finding will be valuable ...

Molecular & Computational biology Jun 20, 2024

Study uncovers genetic key to overcoming water stress in cucumbers

Waterlogged conditions, a consequence of heavy rainfall or inadequate drainage, disproportionately affect crops with delicate root systems like cucumbers. These conditions not only impede root respiration and plant development ...

Earth Sciences Jun 20, 2024

Defunct satellites burning up in the atmosphere could damage the ozone layer

Communications companies such as Starlink plan to launch tens of thousands of satellites into orbit around Earth over the next decade or so. The growing swarm is already causing problems for astronomers, but recent research ...

Astronomy Jun 19, 2024

Earth's atmosphere is our best defense against nearby supernovae, study suggests

Earth's protective atmosphere has sheltered life for billions of years, creating a haven where evolution produced complex lifeforms like us. The ozone layer plays a critical role in shielding the biosphere from deadly UV ...

Agriculture Jun 19, 2024

Study reveals stable soil moisture variability within fields, opens door for satellite remote sensing

A multi-institutional study led by University of Illinois and Agroecosystem Sustainability Center (ASC) scientists concluded that, although soil moisture varies significantly both within a single field and from field to field ...

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