Uncovering the SECRETS of ancient astronomers!

For most of human history, understanding the night sky was not the preserve of scientists, but a precious tool for our survival. Made in partnership with @royalsociety #BBCIdeas #Astronomy #NightSky #Science Subscribe and ???? to the BBC ???? https://bit.ly/BBCYouTubeSub Watch the BBC first on iPlayer ???? https://bbc.in/iPlayer-Home All our TV channels and S4C are available to watch live through BBC iPlayer, although some programmes may not be available to stream online due to rights. If you would like to read more on what types of programmes are available to watch live, check the 'Are all programmes that are broadcast available on BBC iPlayer?' FAQ ???? https://bbc.in/2m8ks6v.