A new paper tests the hypothesis that stable temperature was the key — cold but stable.
Tag: oxygen
Planets with oxygen not necessarily good candidates for ET life?
Researchers have found that the presence of oxygen in a planet’s atmosphere may not be a strong indicator of life: Simulating in the lab the atmospheres of planets beyond the solar system, researchers successfully created both organic compounds and oxygen, absent of life. The findings, published Dec. 11 by the journal ACS Earth and Space […]
Researchers: Earth’s oxygen rose and fell several times before the Great Oxidation Event 2.2 bya
According to the latest research, we learn from ScienceDaily: Earth’s oxygen levels rose and fell more than once hundreds of millions of years before the planetwide success of the Great Oxidation Event about 2.4 billion years ago, new research from the University of Washington shows. The evidence comes from a new study that indicates a […]