Alien Faces On Heart Of Pluto Indicate Planet Ownership, Sept 27, 2015, UFO Sighting Daily.

Date of discovery: Sept 27, 2015
Location of discovery: Heart of Pluto, Pluto
NASA Source: http://www.nasa.gov/sites/default/files/thumbnails/image/detail_lorri_rider.jpg
News Source: http://www.buzzfeed.com/alexkasprak/scientists-dont-know-what-to-make-of-the-latest-pluto-photos?utm_term=4ldqpia

I was examining the newest photo of Pluto when I noticed a big head on the top that was attached to a spine. As I looked down the spine, I found that the entire heart was all faces smashed together.

I realized this was done like a farmer brands his cows to let others know who owns it. Aliens branded Pluto. They want anyone that thinks of taking control of it to know and ask permission first from one of those alien species on the heart. It doesn't mean its an inhabited planet, it only indicates owners.

You say alien don't need signs, but how do you know? Cultures differ a lot from country to country. They will differ even more from species to species. Some won't like to use technology all the time. Some will. Either way, this is a branded planet, so I see why NASA just kept on walking. 
Scott C. Waring