The Projects - Get to know the science behind TRR 170

The late growth history of the terrestrial planets, from the last giant collisions with planetary embryos to the subsequent late bombardment with smaller objects, is of critical importance for understanding the early chemical differentiation processes and the evolution of the terrestrial planets.


The overarching goal of project area A is to quantify the inner solar system’s impactor flux during late accretion, by reconstructing the cratering record of the Moon and the chronology of its crust.

Chemical Budget

The overarching goal of project area B is to determine the provenance and chemical composition of accreted material in the terrestrial planet region, whether and how the characteristics of the material changed with time, and how planetary compositions were modified during accretionary impacts and magma degassing.

Geodynamical Implications

The overarching goal of project area C is to obtain a quantitative understanding of the interplay between impact and magma ocean processes during the late stages of terrestrial planet accretion, by determining how impacts contributed to magma ocean formation and their subsequent evolution, and how magma ocean processes affected the distribution of late-accreted materials and the resulting composition of planetary mantles.

INF - Project

The Information and Data Infrastructure (INF) Project manages research data generated in the TRR 170 subprojects. This data is diverse reflecting the range of methods used, including laboratory and other instrumental data on planetary samples, remote sensing data, geological maps, and model simulations. Accordingly, the strong interdisciplinary alignment of the TRR 170 research network comprises heterogeneous data and different data formats. Most datasets stored in the TRR170-DB repository are used by TRR 170 authors of articles appearing in international journals. These replication datasets are made freely available, and no special permission is required to use them.