Oxygen-16, one of the key elements of life on earth, is produced by a series of reactions inside of red giant stars. Now a team of physicists, including one from North Carolina State University, has revealed how the element’s nuclear shape changes depending on its state, even though other attributes such as spin and parity don’t appear to differ. Their findings may shed light on how oxygen is produced.
Cosmochemists have solved a long standing mystery in the formation of the solar system: Oxygen, the most abundant element in Earth's crust, follows a strange, anomalous pattern in the oldest, most pristine rocks, one that must result from a different chemical process than the well-understood reactions that form minerals containing oxygen on Earth.
Any textbook will tell you that oxygen is essential for advanced life to evolve. But why did life not explode when oxygen levels rose dramatically 2.1 billion years ago? This is the big question after a Danish/Swedish/French research team, led by University of Southern Denmark, has shown that the oxygen content 2.1 billion years ago was probably the same as when life exploded 500 million years ago.
New evidence has emerged that early evolution was triggered by a dramatic rise in atmospheric oxygen levels following major climate change.
Living bacteria have been discovered deep beneath the ocean where they've had no new food or oxygen since dinosaurs roamed the earth.
Observations from NASA's Cassini spacecraft have revealed an oxygen atmosphere around Saturn's moon Dione.
NASA has for the first time analyzed the 'alien matter' in the interstellar wind.
Scientists say they've found the world's oldest fossils, the remains of tiny creatures that lived 3.4 billion years ago in a pre-oxygen world.
Oxygen may have been sustaining life in Earth's oceans long before there was any trace of it in the atmosphere.
Our sun and its inner planets may not have formed from the same materials, as previously thought, samples returned by NASA’s Genesis mission indicate.
The Cassini-Huygens mission has identified an oxygen-carbon dioxide atmosphere around Saturn's second-biggest moon, Rhea - the first time a spacecraft has captured an oxygen atmosphere from a world other than Earth.
Tibetans' adaptation to high altitude took place over less than 3,000 years, a new genetic analysis shows, in what was the fastest shift in human evolution yet discovered.
An MIT team has managed what amounts to artificial photosynthesis, using a modified virus and sunlight to split water into hydrogen and oxygen atoms.