Drone swarms that could print buildings, exploring the Advanced Hackspace and getting the final vaccination in an Ebola trial.

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: Gravitational waves, pollution and drones for good  – Imperial physicists get excited about the detection of the first gravitational waves, a huge pollution study finds the effects stay with us for decades, and drones win prizes.

Drone-printed buildings  – Dr Mirko Kovac is creating swarms of drones that can build emergency shelters and make the cities of the future smarter.

Room to hack  – We visit the Imperial College Advanced Hackspace demo day to find out what the space is all out and how students can set their ideas free.

Ebola vaccine diaries episode three – what happens during a clinical trial for a new ebola vaccine? Our reporter has her second vaccination, experiences a few side-effects, and reflects on her journey.