Celestial views of the Milky Way, Northern Lights, and comets hurtling through space are just some of the incredible images to have made the shortlist for the 2015 Insight Astronomy Photographer of the Year competition.
Britain's James Guy held off a host of Olympic champions to win his first world title, the men's 200m freestyle, at the world championships on Tuesday.
Drysdale wins close single sculls gold Also, check out late gold medal winners from Day 7...
