Klaus Becker (UMass Amherst) - Astrobiology

Abstract: Astrobiology seeks to unify astronomical observations with terrestrial biology to identify the fundamental principles governing the origin and evolution of life on Earth. Recent advances in the characterization of extrasolar planetary atmospheres provides new opportunities to assess planetary habitability and identify potential biosignatures. Complementary investigations within the solar system, including studies on Mars and the Jovian moons, further inform the range of environments of potentially capable of supporting prebiotic or biological processes. In parallel, analyses of near-earth objects such as Bennu and Ryugu have revealed the presence of organic compounds, offering insight into the distribution of life’s molecular precursors. These extraterrestrial perspectives are integrated with observations of terrestrial environments, spanning extreme subsurface ecosystems to shallow tidal habitats, to establish comparative constraints on biological adaptability and resilience. Building on this syntheses, current models for the emergence and assembly of multicellular organisms from simpler systems are evaluated. Together, these approaches aim to refine our understanding of the conditions and processes that give rise to complex life within a planetary and cosmic context. 

The FCAD Astronomy Seminars cover a wide range of topics with speakers of all career levels, from graduate students and postdocs to faculty. The seminars take place on Wednesdays from 12-1 PM in LGRT 533. All members of the FCAD community are welcome to attend.