A Unique Approach for Detecting Life on Exoplanets (1 of 1) (IMAGE)

American Association for the Advancement of Science (AAAS)

A Unique Approach for Detecting Life on Exoplanets (1 of 1)

Caption

Future telescopes (right) will observe atmospheres of distant planets for signs of life. Oxygen/ozone reveal life on Earth (top left). For the early Earth (bottom left), the combination of methane and carbon dioxide would provide an alternative biosignature. This material relates to a paper that appeared in the 24 January 2018, issue of Science Advances, published by AAAS. The paper, by J. Krissansen-Totton at University of Washington in Seattle, Wash., and colleagues was titled, "Disequilibrium biosignatures over Earth history and implications for detecting exoplanet life."

Credit

[Credit: J. Krissansen-Totton]

Usage Restrictions

Please cite the owner of the material when publishing. This material may be freely used by reporters as part of news coverage, with proper attribution. Non-reporters must contact <i>Science</i> for permission.

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.