What I learned from the Gallery walk

Today in the gallery walk I learned that A super moon that's greater than pluto and is similar to earth has been discovered but not fully. Scientist report that they have evidence that proves that the planet exists and is called planet nine labeled for the ninth planet of our solar system. This could affect us because scientists are trying to find out if it exists and if it does can it support life? It can also affect us badly because since it changes our orbit slightly and could cause clusters of asteroids there could be a chance it could hit earth.