New close-up images of the dwarf planet Pluto, taken by the New Horizons spacecraft, reveal an active world that was once thought to be geologically dead; using cutting-edge technology, experts examine the possibility of alien life on Pluto.  

Across the Milky Way, galaxies are going dark, and scientists don't know why the stars are losing their shine; astronomers race against time to uncover the truth behind how galaxies are born and how they die before all of the lights go out.