Scientists have discovered oxygen trapped deep within Earth’s magma, a finding that could explain the mysterious rise of early life on our planet. Geoscientists have long operated under the assumption that the oxygen content in Earth’s mantle is...

A major study reveals how ethnic Tibetan women living above 3,500 meters maintain high oxygen delivery in their bodies and achieve exceptional reproductive success in one of the harshest environments on Earth. Most humans gasp for breath when visiting...

and stagnant environment, such as many species of Pseudomonas. These bacteria can be found in sinks, drains, faucets, and oxygen therapy apparatus in hospitals, and can act as an unsuspected source of infection. Newborn infants, patients with surgical...

Oxygen discovered forming in the Pacific’s deepest darkness may change the debate over deep‑sea mining, highlighting hidden ecosystems. At a depth exceeding 4,000 m in the Pacific’s abyss, researchers observed a surprising rise in oxygen levels inside...

network of vessels, this essential system operates seamlessly to handle numerous life-sustaining tasks. It ensures that oxygen and nutrients are adequately delivered to the billions of cells in our body, while it actively protects against diseases,...

Mysterious oxygen production in the deep Pacific is challenging scientific norms, as researchers investigate if metal-rich nodules spark hidden reactions. In 2012, deep-sea ecologist Andrew Sweetman of the Scottish Association for Marine Science placed...

A new model published in Nature Geoscience predicts when Earth’s oxygen-rich atmosphere will eventually collapse, marking a turning point for life. Our planet’s hospitable, oxygen-rich atmosphere is a fleeting luxury in the grander timeline of the...

a new study is dismantling the prevailing scientific consensus that their massive size was primarily a result of the high oxygen levels characteristic of the Carboniferous period. Challenging the Oxygen-Driven Growth Hypothesis For decades, researchers...

models of decomposition. Interestingly, about one‑third of these preserved brains originate from water‑logged, low‑oxygen settings such as riverbeds, lake margins, submerged caves and shipwreck sites—environments that normally accelerate decay rather...

caused the contamination, or how much material was added. A More Reliable Chemical Fingerprint The new study turned to oxygen isotopes instead. Oxygen has three stable forms, oxygen-16, oxygen-17, and oxygen-18. Different planets and different asteroid...

erases much of their original mineralogy, making provenance determination challenging. Researchers therefore rely on the oxygen‑isotope composition of each spherule, which serves as a chemical fingerprint linking it to its source. A Rare Subset of...

Astronomers uncover clues that a massive white dwarf’s concealed core could be composed of oxygen and neon, reshaping stellar evolution theories. Astronomers have identified a compact stellar remnant roughly half the diameter of Earth that carries a...

Palaemon's respiratory system, found in freshwater shrimp, relies on gills to extract oxygen from water, facilitating their underwater survival. The Palaemon respiratory system is a fascinating adaptation found in freshwater shrimp, specifically...

Biological Oxygen Demand (BOD) It is also known as Biochemical Oxygen Demand (BOD). It is defined as the amount of oxygen consumed during the process of degradation and eventual stabilization of unstable organic substances by the biochemical activities...

of these sounds—the millions of tiny air sacs or alveoli within the lungs. These delicate structures, where the exchange of oxygen and carbon dioxide occurs, give rise to the subtle, harmonious resonance that is vesicular breath sounds. Vesicular breath...

in comprehending the intricate workings of the human body. Blood flow plays an important role in ensuring the delivery of oxygen and nutrients to tissues and organs, as well as the removal of waste products. The movement of blood through the circulatory...

NASA trials Artemis hardware against harsh lunar dust while pioneering tech to convert Moon resources into oxygen and rocket fuel. Before astronauts can set foot on the Moon for months at a time, the gear they rely on must survive a pervasive...

blocks of life were likely synthesized long before they were incorporated into asteroids. By conducting high-precision oxygen isotope analysis on primitive carbonaceous chondrite meteorites, scientists have determined that the organic matter within...

that the body needs for energy and to maintain its structure and systems. Carbohydrates comprise carbon, hydrogen, and oxygen in a ratio of roughly one carbon atom to one water molecule. They are the body's primary source of energy and are broken down...

in an individual. This energy is obtained by the oxidation of end products of digestion at the cellular level. Hence oxygen is essential for the maintenance of life. Oxygen is involved in oxidation by releasing carbon dioxide along with energy....