# Geodynamic Frontiers

**URL:** https://community.geodynamics.org/c/grand-challenges/22.md

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## [About the Frontiers category](https://community.geodynamics.org/t/about-the-frontiers-category/54)

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**Author:** [@cig-admin](https://community.geodynamics.org/u/cig-admin)\
**Replies:** 0

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Frontiers in Geodynamics Discussion forum to contribute to the report to the National Academy of Sciences \< add link to prior report \>

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## [Big Pressing Questions](https://community.geodynamics.org/t/big-pressing-questions/61)

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**Author:** [@cmcooper](https://community.geodynamics.org/u/cmcooper)\
**Replies:** 0\
**Last updated:** [September 26, 2018, 9:06pm UTC](https://community.geodynamics.org/t/big-pressing-questions/61 "2018-09-26T21:06:59Z")

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Lifted from Louise: Geodynamics grand challenges - a compilation: What is the age of the inner core? What are the light elements in the core? What creates the magnetic field and determines its strength and reversals? W…