plutonium

Is the future of deep-space exploration at risk?

Dave Mosher is a science reporter who has written for Scientific American, Popular Mechanics, National Geographic News and Discovery.com. He joins Hari Sreenivasan to discuss how a dwindling supply of plutonium threatens deep space exploration.

SciTech Now Episode 406

In this episode of SciTech Now, a look at the topography of teeth; a dwindling supply of plutonium threatens deep space exploration; meet the Kootenai tribe of Idaho who are saving the white sturgeon; and a speed-dating science competition.