Object Permanence
What Makes a Planet?

21 March 2015

If you’ve ever been around a baby, you know how fun it is to hide an object and bring it back out. The baby believes the object is gone, and in fact, forgets it even existed. Fortunately we all grow out of this and develop something called object permanence. Today we’re going to talk about this with Dr. Grant Gutheil, Associate Professor of Psychology at Nazareth College in Rochester NY. In the second half of our show we’ll talk about what makes a planet a planet, and why Pluto is no longer considered one.