Phil Plait in Slate put together a helpful video discussing the Top Space and Astronomy Stories in 2015, including New Horizons arriving at Pluto, the Dawn spacecraft over Ceres, and reusable rockets. He also has time to mention the science in the movie The Martian as well as a cameo by Elon Musk on the Simpsons. It is quite a list, as it has been quite a year.
