In this edition: Micrometeorites found in city gutters, a new space for entrepreneurial students and scientific adventures at the latest Fringe event.

The podcast is presented by Gareth Mitchell, a lecturer on Imperial's Science Communication MSc course and the presenter of Click Radio on the BBC World Service, with contributions from our roaming reporters.

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News: Diving drones and board game strategies – Researchers invent a water-sampling drone that dives like a gannet and leaps like a flying fish, and a study reveals the best music to listen to for winning that Christmas board game.

Urban cosmic dust: Micrometeorites are falling to Earth all the time, but until now they have been difficult to distinguish from industrial dust. For the first time, researchers have identified them in gutters in Oslo, Paris and Berlin.

Space for enterprising students: The Enterprise Lab is open for business – a space where students can jump-start entrepreneurial ideas by connecting with others, receiving mentoring and even testing out their pitching skills.

Research around the world: For the final Fringe event of 2016 visitors were taken on research journeys around the world, from sparrows on the island of Lundy to volcanology in Mexico, carbon dioxide storage in Qatar and beetles in Borneo.