Using Oxygen as a Tracer of Galactic Evolution

New research&nbsp;presents the first measurements of the changing strengths of oxygen emission lines from the present day and back to 12.5 billion years ago.

Ice Cores Reveal Oxygen is Slowly Disappearing From Earth's Atmosphere

During the past 100 years, atmospheric oxygen has declined by a&nbsp;&quot;speedy&quot; 0.1 percent because of the burning of fossil fuels, researchers say.&nbsp;

Venus-Like Exoplanet Might Have Oxygen Atmosphere, But No Life

&quot;This planet might be the first time we detect oxygen on a rocky planet outside the solar system.&quot;

Venus Used to Have Oceans But Where Did the Water Go?

Its atmosphere has 10,000 to 100,000 times less water than Earth&rsquo;s.

Scientists Propose New Explanation for How Earth Got Its Oxygen

Recipe for an oxygenated atmosphere = tectonics + continents + life