Podcast:Planetary Radio: Space Exploration, Astronomy and Science Published On: Wed Oct 18 2017 Description: Astronomer Pamela Gay tells us how anyone can work with images of Earth taken by astronauts, turning them into terrific scientific resources.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.