From some of the lightest creatures on earth, to the heaviest things in the cosmos, this episode is all about mass. It’s a magical opening to the show as the team discusses a group of insects called fairy wasps which are so light it’s near impossible to weigh them. They then turn to matters of massive proportions, discussing a little thing called dark matter. Finally the team wraps up by looking at the surprising, and slightly hilarious ways that a kilogram is measured. On the pod are Rowan Hooper, Anna Demming and Timothy Revell. Find out more at newscientist.com/podcasts
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