Sky History 2 Wednesday

Giorgio Tsoukalos studies India's Sanskrit texts, which are filled with descriptions of brain surgery, flying crafts, nuclear physics, and other advanced sciences

The suggestion that some animals may have been planted on Earth by aliens as part of an experiment to shape life on Earth

Alice Roberts visits archaeological digs around the UK, starting with the west of Britain, where finds include a Viking camp and ancient gold

The impact of Danish battle axes, Saxon shields and Norman lances on the Battle of Hastings in 1066

Giorgio Tsoukalos joins forces with theorists to consider whether unexplained advances in human evolution can be attributed to alien architects

Tony Harris travels to the Florida coast to investigate strange weather patterns and unexplained phenomena at the Bermuda Triangle