More than 2 billion years ago, oxygen began building up in Earth’s atmosphere, changing the planet’s future. But scientists ...

A nutrient feedback between phosphorus, sulfur and microbes may explain how Earth repeatedly rebuilt its oxygen-rich ...

An international team of scientists has found that oxygen is being produced in complete darkness approximately 4,000 meters (13,100 feet) below the ocean's surface. It was previously thought that only ...

Part 1 of this series of three articles dealt with the uses hydrogen and nitrogen found in oil refineries. Some of these uses have been around for a long time and are well known; others are newer, ...

Starting about 2.4 billion years ago, oxygen began to exist in Earth's atmosphere more persistently than before.However, we ...

(PhysOrg.com) -- If humans ever create a lunar base, one of the biggest challenges will be figuring out how to breathe. Transporting oxygen to the moon is extremely expensive, so for the past several ...

With the help of experimental studies on molecular level, researchers are acquiring increased knowledge on how plants form oxygen from water molecules. An international research team has now found a ...

Modcon Systems Ltd. has announced updates to its MOD-1040 Oxygen Analyzer for high pressure industrial gas applications. The analyzer measures from 1 ppm to 100% O2 at process pressures up to 350 barg ...