New Horizons Science Meeting, January 2012

Explanation: (From left) Randy Gladstone (Co-Investigator focusing on the mysteries of Pluto's upper atmosphere - what its made of, how it interacts), John Spencer (New Horizons science team member Southwest Research Institute), Darrell Strobel (JHU-APL).

Pluto

Image credit: © michael soluri / michaelsoluri.com.