Dr Shane is joined in the studio by Chris KP and Scarlett, and Graci from Texas, sharing science news about unique animal smells, how hummingbirds negotiate small spaces and exciting solutions to manage methane emissions from solid waste to meet climate goals. Graci also shares a few research studies looking at the topic of awkwardness, and how long a silence needs to be to become an awkward silence. Professor Pierluigi Mancarella from University of Melbourne was an invited guest, talking about exciting new ways to integrate renewable energy sources into the power grid in a stable and efficient way. Another invited guest was Dr Flora Hui from Centre for Eye Research Australia, talking about how a routinely available vitamin supplement could boost the eye's energy production to combat neurodegenerative diseases such as glaucoma.