Tom Siegfried

Contributing Writer

Katherine Freese

In Search of Dark Stars

Katherine Freese, a physicist who will soon lead the Nordic Institute for Theoretical Physics, reflects on the hunt for dark matter and how dark matter heating may have produced the first stars.

About the author

Tom Siegfried is the former editor-in-chief of Science News and the author of three books: “The Bit and the Pendulum,” “Strange Matters” and “A Beautiful Math.”