We are very excited to have our past faculty colleague Alex Halliday visiting the University of Michigan on Thursday, Nov. 17 th . He is currently the Director of the Earth Institute at Columbia University and Founding Dean of the Columbia Climate School.

When Alex was at Michigan (1986-1998), he performed the first isotopic measurements that constrained the timing of Earth’s core formation and made the link to the giant impact event that formed our Moon. In 2000, he coined the term “Theia” for the Mars-sized impactor that struck the Earth early in its history. Alex has continued his research into Earth’s origins and its earliest history and will be giving a talk on this subject on Thursday, Nov. 17 th at 4:00 p.m. in 1400 Chemistry Building. It is entitled, “New uncertainties around Earth’s origins”.

Alex has received numerous honors and awards in recognition of his scientific contributions. These include the Bowen Award and Hess Medal from the American Geophysical Union, theUrey Medal of the European Association of Geochemistry, among others. He is an elected Fellow of the Royal Society (FRS) and a Foreign Associate of the National Academy of Sciences(NAS).

Alex is a superb speaker and has a compelling scientific story to tell – don’t miss his talk! All are invited: students, faculty, and staff!

ALSO: Alex will be hosting a round-table Q&A (refreshments will be provided) on the Climate School at Columbia University. If you are interested in climate-related research and initiatives, please attend! All are welcome! It will be held in Room 2540 from 3:00-3:45 p.m. in North University Building.