Dr Shane, Dr Linden, Dr Laura, Dr Ray bring you this week's hottest science, including ice dunes on Pluto, cockroach milk, and the recent weather's tracking with the current climate models.

The team chat with Dr Aya Mousa (Monash University, Monash Centre for Health Research and Implementation) about Vitamin D, how it works and what it does in various organs of the body.

They interview Dr Tan Nguyen (WEHI) about his work with a relatively unknown protein called SIDT2, which he found was important for the immune response during viral infection, warning uninfected cells of incoming infection so they are better prepared to fight off infection.

Their final guest is Dr Francine Marques, a National Heart Foundation Future Leader Fellow at the Baker Heart and Diabetes Institute, about her investigation into the molecular genomics of hypertension - a major risk factor for cardiovascular morbidity and mortality.

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