Host: Jorge Salazar
Lead Producer: Mike Brennan

ES 22 producers: Deborah Byrd, Beth Lebwohl, Ryan Britton, Emily Howard

This week’s lineup:

Killer asteroid science Jorge Salazar talks with mathematician Andrea Milani of the University of Pisa, Italy about the science of predicting the paths of asteroids, and calculating the risk to Earth.

Ocean gyres Beth Lebwohl spoke with Manu Di Lorenzo about the large-scale movement of water in our oceans, and why it’s important to you.

Image Credit: Space Ritual

Global Night Sky with Deborah Byrd. You can see five planets this month! Skywatching expert Deborah Byrd tells you how.

Shale gas extraction. Jorge Salazar speaks with Rob Jackson, an environmental chemist at Duke University, who led a study published in The Proceedings of the National Academy of Sciences, which found evidence of methane contamination in drinking water near extraction sites. He explains the findings with EarthSky.

This week’s musical contributors:

Vanessa Lively

Royal Forest

The Black and White Years

One Hundred Flowers