06:06Unexpected Elements2021 the year of variantsBBC World Service Duration: 1 hour, 8 minutes Sat 1st Jan 2022, 06:06 on BBC World Service AustralasiaAvailable for over a yearListen nowThe year began with Alpha and ends with Omicron, what have we learnt? Show more GenresFactualScience & NatureFormatsDiscussion & TalkBrandUnexpected Elements Source: BBC Online