In the Payload Room at APL

Explanation: In the Payload Engineering room, shown above, Maarten Versteeg and Tommy Greathouse work with data from the Alice ultraviolet spectrometer. This was taken 36 hours before Pluto close approach, and the instrument had sent back its very first spectrum of Pluto. Up until now, this instrument had been too far from Pluto to detect it.

Pluto

Image credit: NASA/JHUAPL/SwRI/Henry Throop