125: Oceans, oceans everywhere with Dr. Keane

Dr. James Tuttle Keane  discusses why Pluto probably has a huge underground ocean. To make this discovery, he used images of Pluto taken by the New Horizons spacecraft, computer simulations, and good old-fashioned pen and paper.  Don't miss Dr. Keane's planetary illustrations on his  twitter feed .  Image: Sputnik Planitia  as seen by New Horizons .

Dr. James Tuttle Keane discusses why Pluto probably has a huge underground ocean. To make this discovery, he used images of Pluto taken by the New Horizons spacecraft, computer simulations, and good old-fashioned pen and paper.

Don't miss Dr. Keane's planetary illustrations on his twitter feed.

Image: Sputnik Planitia as seen by New Horizons.