Three science updates: Starfish light-guiding arms, cellular pathogen response, and first black hole wind observation

A team of researchers in Cambridge have looked at how cells can quickly respond to pathogens in the body by forming a membrane around it and sending it to the cell's 'recycling bin'

Astrophysicists have, for the first time, observed some wind created by a black hole, following five years of compiling and analysing data

Science commentator Laurie Winkless joins Kathryn with three new studies, including one into how starfish arms can guide and focus light