In this edition: Getting to the heart of planet formation, criminal investigations at the latest Fringe, and tackling post-operative delirium.

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: Breaching emissions limits and printing baby universes – New diesel engines have been found to breach emissions limits when tested on the road as opposed to the lab, and physicists make it possible to 3D print a map of the earliest light in the universe.

How planets are born – New Imperial College Research Fellow Dr Tom Haworth tells us how he’s investigating the earliest stages of planets and stars, and the results he’s found just one month into his time at Imperial.

Crime Scene Imperial – November’s Fringe-goers investigated the evidence at the intersection of science and crime, including the chemistry of fingerprints, detecting white collar crime and the sociology of stabbings.

Knocking out delirium – Post-operative delirium can leave a surprisingly large number of people confused and distressed after major surgery. One patient talks us through his experience and we discuss the results of a trial at Imperial that could help solve the problem – by using sedatives.