Marcus Jones joined the team live in studio for Dear Science. This week, Christina and Marcus discussed gun violence research in the US, monkeypox, and the science behind why yawns are contagious.

Aneeka spoke to the National Party's Dr Shane Reti for their regular segment. This week, they discussed crime prevention measures and New Zealand's relations with the Pacific.

Christina spoke to Lara Greaves, a political scientist from the University of Auckland, about the latest political poll results that put National ahead on 39%.

And Jack did an explainer on the proposed Three Waters reform. He spoke to Whanganui Mayor Hamish McDouall and Waitakere Ward Councillor Shane Henderson.