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Planetary Group Seminar

In the seminars of the Department of Planets, scientists, post-doctoral students, and guests report on discoveries and research results of the missions and projects concerning planets, comets, asteroids, and planetary dust.

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Planetary Group Seminar: Erosion of silicates and its implications for Martian surface habitability and chemistry (K. Finster)

The harsh and detrimental Martian surface conditions are generally associated with the radiation environment that is dominated by highly cytotoxic UV radiation. UV radiation both directly affects living organisms through modifications of the genetic code as well as indirectly through peroxidation of proteins and membrane lipids by reactive oxygen species (ROS) formation including H2O2 that are cytotoxic. I will introduce an alternative mechanism that equally results in ROS formation and can account for direct and indirect cell death: ABRASION BY SALTATION. [more]

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