Dr. @AlanStern, chief of @NewHorizons2015, has completely overthrown my preconceptions about Pluto and our solar system. Don't miss your next small step into space exploration: https://t.co/TGtvMYdGob pic.twitter.com/VLZvzTSPnX
— SophieCo (@SophieCo_RT) December 12, 2020
#SophieCo
