Sophia Roosth
Associate Professor in the History of Science, Harvard University

Sophia Roosth is the Frederick S Danziger associate professor in the department of the history of science at Harvard University. She is the author of Synthetic: How Life Got Made (2017).

Written by Sophia Roosth

Stromatolites at Hamelin Pool, Shark Bay, Western Australia. Photo by Ben Cordia/Wikipedia

Essay/
Earth science and climate
The shape of life

The ancient Earth was profoundly alien. How do we distinguish between the living and non-living in the fossil record?

Sophia Roosth