Vaccine trials seeking volunteers, a fossil that could solve a mystery, and a new phase for the Opal project.

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 from the Research Communications group.

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News: antineutrinos and diabetes – The quest to explain why matter survived the Big Bang continues, and questions arise over India’s diabetes screening programme.

Ebola vaccine trials – Imperial is recruiting healthy volunteers to take part in the first trials of two new Ebola vaccines. (Full story)

Parasite mystery  – Pentastomids, which live inside vertebrates, have been around for much longer than their hosts – so how did they live before? Dr Mark Sutton explains how a new fossil discovery provides an answer.

Opal expands – As Imperial’s environmental citizen science project rolls out across the UK, David Slawson tells us what we’ve learnt so far.