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In this edition: Testing virtual reality to overcome visual vertigo, making use of waste chicken feathers and crashing the Rosetta spacecraft.

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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– Research reveals that feeding babies egg and peanut earlier may help prevent food allergies, and a mysterious space blob is found to have a huge galaxy cluster forming in its centre.

– After certain ear conditions, some patients find supermarket aisles or busy transport hubs make them feel incredibly dizzy. Can virtual reality help retrain their brains?

– Billions of chicken feathers go to waste every year, but Imperial ÌìÃÀ´«Ã½ have been creating innovative uses for them, including insulation, water repellent coatings and structural support for concrete.

– The Rosetta spacecraft has spent the last two years orbiting comet 67P/Churyumov-Gerasimenko, and it has one last task before running out of energy: slamming into the surface of the comet, collecting data as it goes.