What Is Life?

Episode 8. Kate Adamala: Can We Make Life?

Kate Adamala is a chemist at the University of Minnesota. In her Protobiology Lab, she is trying to build a synthetic cell from scratch.  Protobiology Lab  Adamala's T

Episode 7. Donato Giovannelli: Warm Ponds Or Hellish Vents–Where Did Life Begin?

Donato Giovannelli is an assistant professor at the University of Naples "Federico II." He travels to acid lakes and other extreme environments that are the closest thing

Episode 6. Steven Benner: How Weird Can Life Get?

All the life we know is the same: carbon-based, with DNA for genes. (Okay, except for RNA viruses.) But Steven Benner says it doesn't have to be that way. Benner is a Dis

Episode 5. Jeremy England: Why Does Life Exist?

Jeremy England is a physicist at MIT. He has developed an influential theory of life as a way for matter to dissipate energy. England's MIT lab site An article about E

Episode 4. Caleb Scharf: How Did Life Begin?

We don't know how life got its start. But as more evidence emerges, explains astrobiologist Caleb Scharf, only a few theories are emerging as leading contenders. Scharf i

Episode 3. Jim Cleaves: The Origin of Life, from Frankenstein to a Laboratory Spark

H. James Cleaves is a professor at the Earth-Life Science Institute in Tokyo and co-author of A Brief History of Creation: Science and the Search for the Origin of Life.

Episode 2. Sara Walker: If We Find Alien Life, Will We Even Know It?

Sara Imari Walker is a physicist and astrobiologist at Arizona State University. She studies life as a physical phenomenon, in order to develop new ways to search for it

Episode 1. Carlos Mariscal: What Do We Mean When We Ask, "What Is Life?"

Carlos Mariscal is a philosopher at the University of Nevada Las Vegas. He collaborates with evolutionary biologists and astrobiologists to explore what it means to be al