Astrogeology: March 2022

In this article researchers from the Ocean University of China, Qingdao, China, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China, University of Illinois at Urbana-Champaign, Urbana, IL, USA and Northwest University, Xi'an, China discuss how magmatism has occurred throughout Earth's history.

Our understanding of planet formation has been rapidly evolving in recent years. The classical planet formation theory, developed when the only known planetary system was our own Solar System, has been revised to account for the observed diversity of the exoplanetary systems.

Progressive astronomical characterization of planet-forming disks and rocky exoplanets highlight the need for increasing interdisciplinary efforts to understand the birth and life cycle of terrestrial worlds in a unified picture.

It is easy to see that the processes in the Earth's interior influence what happens on the surface. For example, volcanoes unearth magmatic rocks and emit gases into the atmosphere, and thus influence the biogeochemical cycles on our planet.

For a planet to be considered habitable on its surface, it is an important advantage for it to have a magnetic field that protects its atmosphere from stellar winds as well as cosmic rays.