The Sky at Night

BBC FOUR

Sunday 13 May 2018  22:00 - 22:30 (30 mins)
Gaia: A Galactic Revolution: How ESA's Gaia Space telescope has been mapping the heavens, from the discovery of wandering black holes to a new age map of the Milky Way. Also in HD. [S]

The Sky at Night may be available on playback
The Sky at Night (BBC FOUR) Sunday 13 May 2018 22:00 - 22:30