09:32CrowdScienceHow do you navigate in space?BBC World Service Duration: 32 minutes Mon 21st Feb 2022, 09:32 on BBC World Service East AsiaAvailable for over a yearListen nowwhen spacecraft leave the surface of the Earth, how do they navigate? Show more GenresFactualScience & NatureScience & TechnologyFormatsDiscussion & TalkBrandCrowdScience Source: BBC Online