Building Life

Stem Cells and Embryo Development

Magdalena Zernicka-Goetz is a Bren Professor of Biology and Biological Engineering at the California Institute of Technology. Over the past 25 years, the Zernicka-Goetz Lab has pioneered key discoveries in early mammalian development, including the first studies of post-implantation human embryo development in vitro, insights into the origins of cell fate specification in mouse and human embryos, and the creation of first stem cell-derived embryo models using multiple stem cell types. By uncovering fundamental principles that regulate cell identity, pluripotency, and self-organization, the lab continues to advance our understanding of embryo development with broad implications for fertility, regenerative medicine, and stem cell biology.

We aim to understand mechanisms by which cells establish their identity, gain and lose pluripotency and how it relates to embryo shape and size, plasticity and self-organization. To address these questions we study mouse and human embryos and build embryo models from multiple stem cell types in vitro.

Mouse & Human Embryos

Self-Organization of Stem Cells into Embryos in vitro

Developmental Clock

Controlling Size & Shape

Cell Competition

Our lab conducts research at the University of Cambridge and the California Institute of Technology

The Art of the Science

A selection of the images acquired in our lab to demonstrate the beauty of science.

Recent News

The lab joins our friends at diBBE for pastries in the South Chen Gardens!

October 10, 2024

The lab takes a break to hike the nearby Eaton Canyon Falls Trail!

September 15, 2024

Welcoming our newest post-doc, Nina, to the lab and celebrating the double birthday of Laura and Magda!

August 30, 2024

Read The Dance of Life


The Dance of Life
will take you inside the incredible world of life just as it begins. It reveals the wonder of the earliest and most profound moments of early life; how we become human. Through Magda’s trailblazing research as a professor at Cambridge, you’ll learn how early life starts to take shape and discover the true beauty of life’s beginnings.

– Penguin Random House

Follow Magda @ZernickaGoetz