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Cop26: the final day – have we made any progress on saving the planet?

Why does Covid-19 make things smell disgusting?

Inside Delhi’s air pollution crisis

Astronaut Chris Hadfield on life in space

Do lobsters have feelings? – podcast

Covid-19: how worried should we be about Omicron?

Is TikTok giving people Tourette’s Syndrome?

Covid-19: How fast is the Omicron variant spreading? podcast

Nasa’s new space telescope and its search for extraterrestrial life