Pluto in a Minute: What's Inside Pluto? | NASA New Horizons July 29, 2015: We're getting some pretty spectacular views of Pluto's surface! But what's on the inside? This is Pluto in a Minute. So, obviously, New Horizons did not land on Pluto and drill into the surface to tell scientists what's actually going on inside the planet. However, scientists can extrapolate what might be going on inside Pluto based on surface observations. Namely, scientists can get a pretty good idea of what's going on