How Much Do Portable Oxygen Concentrators Cost? Portable oxygen concentrators tend to cost around $2,500, but there are models that are both more affordable and more expensive. Data compiled by ...

A pulse oximeter measures your blood oxygen levels and pulse. A low level of oxygen saturation may occur if you have certain health conditions. Your skin tone may also affect your reading.

An international team of ocean, Earth and marine scientists has found evidence supporting a theory that a certain oxygen isotope ratio in seawater has changed slowly over the past 540 million years.

Rocks are generating 'dark oxygen' in an area being explored for deep-sea mining. Over 12,000 feet below the surface of the sea, in a region of the Pacific Ocean known as the Clarion-Clipperton ...

Some studies indicate that oxygen fugacity, or the amount of oxygen available in the mantle, may strongly affect the melting temperatures of deep mantle rocks, which in turn may have influenced ...

An instrument on Nasa's Perseverance rover on Mars has made oxygen from the planet's carbon dioxide atmosphere. It's the second successful technology demonstration on the mission, which flew a ...