2018 NASA NExSS/SEEC Symposium

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Abstracts Due: 5 March 2018  

The “Environments of Terrestrial Planets Under the Young Sun: Seeds of Biomolecules” Symposium will be held on 9-13 April 2018, hosted by the Sellers Exoplanet Environments Collaboration at NASA Goddard Space Flight Center, Greenbelt, MD, USA. This symposium is a major international interdisciplinary conference in the emerging area of astrobiology covering astrophysical, physico-chemical, atmospheric and geological aspects of environments of early terrestrial planets with a focus on the impacts of the young Sun’s space weather on the precursors of life.

General Topics

• Evolution of Space Weather from the Sun
• Magnetic Protection of Early Terrestrial Planets: Escape Processes
• Atmospheric Pressure of Early Earth, Mars and Venus: Space Weather Impact
• Faint Young Sun paradox and current atmospheric models
• Impact of ionizing radiation on atmospheric chemistry and surface of the early Earth, Mars and Venus
• Ionizing radiation dosage on surfaces of early terrestrial planets: survival of biopolymers
• Early Earth’s oceans under the young Sun
• Pathways and traces of prebiotic chemistry on terrestrial planets and exoplanets
• Pathways to complexity: from simple molecules to RNA
• Synthesis of organic compounds of biochemical importance in reducing and neutral atmospheres
• The interplay of the different subsystems on early Earth and Mars for the origin of life
• Evolution of earliest stages of life and its traces left in the geological record of Earth and Mars
• Global and local environments around great oxidation event and traces on Earth
• Origin of biogenic conditions on exoplanets