Q: In this task, you are given a context paragraph of the tweet and question. Your task is to generate right answer of given question based on given context tweet paragraph.
Context: #TGIF. Enjoy the best pics humans may see for decades of #Pluto, courtesy our #PlutoFlyby* NASA New Horizons (@NASANewHorizons) December 4, 2015 Question: who is encouraging others to appreciate pictures of pluto?
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
nasa new horizons