Andrew P. Han

Andrew P. Han is Science Friday's web intern and a graduate student at NYU's Science, Health, and Environmental Reporting Program. His favorite graph is the Hertzsprung-Russell diagram.

Andrew P. Han is Science Friday's web intern and a graduate student at NYU's Science, Health, and Environmental Reporting Program. His favorite graph is the Hertzsprung-Russell diagram.

Picture of the Week: Ugab River

Picture of the Week: Ugab River

Picture of the Week: This Bee Buzzes for Blueberries

Picture of the Week: This Bee Buzzes for Blueberries

This blue airplane is actually quite green — and perhaps it's the future

This blue airplane is actually quite green — and perhaps it's the future

NASA shares a family portrait of the inner solar system, starring Saturn

NASA shares a family portrait of the inner solar system, starring Saturn

Where on Earth is this picture from? Or is it?

Where on Earth is this picture from? Or is it?

The secret behind Breaking Bad's science smarts

Donna Nelson has been working with Breaking Bad since 2008, though she's never appeared on screen. She's the adviser behind the "cook" and even the writing on the chalkboard in Walter White's classroom. Nelson advises the show on its science.

The secret behind Breaking Bad's science smarts