Oxygen

Perseverance has notched up another first by extracting oxygen from the Martian atmosphere. The rover's toaster-sized MOXIE unit converted carbon dioxide into about 5.4 grams of oxygen – a process that may one day help astronauts live off the land.

Engineers at University of California, Berkeley have demonstrated a new wireless implant that can detect oxygen levels in deep tissues, with hopes it could become a tool to track the health of transplanted organs, among other applications.

A new study has found that in about a billion years’ time, Earth will rapidly lose most of its atmospheric oxygen, returning to how it was billions of years ago. This may have important implications in the search for life on other planets.

Chronic skin wounds such as pressure ulcers can become very serious if left untreated, potentially even leading to amputations. A new "smart" bandage could help, by changing color before such wounds occur in the first place.

Weight is a premium on space launches, so the less we have to take with us, the better. Now engineers have developed a new electrolysis device that may be able to convert very salty Martian water into breathable oxygen and hydrogen for fuel.

When NASA’s Perseverance rover touches down in Jezero Crater on February 18, 2021, it will carry with it an experiment that will attempt to transform carbon dioxide into oxygen – a gas that can be used to create rocket fuel.

Many readers are likely already familiar with the oximeters that measure blood oxygen levels via the patient's finger. Well, scientists have now developed a device that works on the same principle, but it can be non-invasively used on unborn fetuses.

Turns out the Red Planet is a little more green than we thought. The ExoMars Trace Gas Orbiter (TGO) has detected a tinge of green in the atmosphere, making it the first time this aurora-like glow has been spotted around a planet other than Earth.

A study from Stanford University has delivered the most thorough investigation into a human body’s molecular response to exercise ever conducted. The research points to a future blood test that could objectively measure a person’s general fitness.

Aquatic hypoxia can be a serious problem, producing oxygen-depleted "dead zones" in lakes or seas. New research suggests that a process known as downwelling may help keep those zones from forming – although it wouldn't be a cheap solution.

There’s only so much oxygen we can take with us to the Moon, so figuring out how to produce it there is crucial. Now, ESA researchers have created a prototype device that can make oxygen out of the most common thing on the Moon – dirt.

The 2019 Nobel Prize in Medicine has been awarded to William Kaelin, Peter Ratcliffe and Gregg Semenza for uncovering how cells adapt to low oxygen.