Searching for Life in the Alpha Centauri System

Alpha Centauri

An international team has discovered that biopigments of plants, so-called biological photosynthetic pigments, leave behind unique traces in the light they reflect. Prof. Dr. Svetlana Berdyugina from the Institute of Physics of the University of Freiburg and the Freiburg Kiepenheuer Institute for Solar Physics studied these biosignatures together with researchers from the University of Hawaiʻi at Mānoa, USA, and the University of Aarhus, Denmark, with the help of polarization filters. If biopigments were present as a sign of life on a planet, they would leave behind a detectable polarized signature in the reflected light. The scientists have now published their findings in the International Journal of Astrobiology. Read More →