Dan Falk

Donald Johanson reflects on his fossil discovery that shook the human family tree a half century ago.

Neuroscientist Christof Koch on human minds, AI, and bacteria.

A new consensus emerges.

A glimpse of a mind jammed to the rafters with ideas.

Tune in to an exploration of one of the great quandaries in science and philosophy.

A volley of new insights reignites the debate over whether our choices are ever truly our own.

In Contact, the great science advocate posed a religious question about the cosmos.

Don’t worry, even in a simulation, life is still perfectly meaningful.