![Midday on WNYC show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/031/143/small/wnyc-s-leonard-lopate-show.jpg)
Summary: We can see the moon is up there in the sky most nights, but how much do we really know about it? Dr. Juliane Gross, a research scientist in the American Museum of Natural History's Department of Earth and Planetary Sciences, tells us all about the moon--how it got there, why it orbits the earth, and what a blue moon—the kind of full moon we had on Tuesday—is.