BBC Sky at Night Magazine – October 2015

ROSETTA MISSION: Comet 67P reveals its secrets | CITY IMAGING: Photograph the deep sky under light-polluted skies | EXOPLANETS IMAGINED: How illustrators draw alien worlds no one has seen | ON TEST: Baader Planetarium's new eyepiece series | BONUS CONTENT: Explore the Gaia Milky Way survey's first year in interviews, videos and guides