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Department of Astronomy pres.

Astronomy Colloquium Series Presents

Dr. Seth Jacobson, Assistant Professor, Michigan State University

Dr. Seth Jacobson Dr. Seth Jacobson
Dr. Seth Jacobson
“Combining astrophysics and geology to study the formation of Earth and Venus”

The accretion of Earth is a mysterious era in geologic history without any surviving rock record. However, this is when Earth's bulk geochemistry and geophysical structure was established. Using sophisticated astrophysical-geological modeling, we can reconstruct this era, date important events such as the Moon-forming event, and determine basic characteristics of the nascent protoplanetary disk. By considering the consequences for Earth, we can better understand the stark contrast of Venus--a planet without a planetary magnetic field, without plate tectonics, and without a Moon. This earliest eon which lies at the intersection of astrophysics and geology had profound consequences for life on Earth that are just beginning to be understood.

Please note: Should you require any accommodations to ensure equal access and opportunity related to this event please contact Stacy Tiburzi at 734-764-3440 or

Tea will be served beforehand from 3:00-3:30pm in Serpens.

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