Ok, we'll just send you first. We might throw you some food and water at some point.
These pictures are very important. It would be disasterous to now know the topography of the planet surface.
Don't forget, looking at the specta of light reflected off the surface tells us many things about the composition of the planet and its atmosphere. It's speculated that Saturn's moon Titan has atmosphere made up of methane and other hydrocarbons, this is just from looking at the orange spec that is Titan. Don't forget to mention Neptune's Triton, scientists were able to figure out that that moon has nitrogen geyers and ice that behaved like lava(although its around -100c).
About the object found: I wouldn't really call it a planet, but more or less a kuniper belt object. There are thousands of planetoids within the kuniper belt, we just managed to find one.