Tag Archive for 'Vegetation red edge'

$If the development of life on other inhabited worlds follows a similar timeline to life on Earth, vegetation red edge (VRE) biosignatures are only present for a fraction of a planet’s habitable lifetime once vegetation covers the surface; a VRE biosignature similar to that on the present-day Earth would be difficult to detect without very high-precision instruments; however, the team’s models show that the VRE signature increases with geological time, as well as with increasing vegetation surface fraction and decreasing cloud coverage. Image credit: Jack O’Malley-James / Wendy Kenigsberg / Brand Communications.$

Earth’s Natural History May Serve as Guide for Astrobiologists to Spot Inhabited Exoplanets

Sep 27, 2018 by News Staff

By looking at Earth’s natural history, Cornell University’s Carl Sagan Institute astrobiologists Jack O’Malley-James and Lisa Kaltenegger have found...