Dr Karl joins Rhod to answer more of your science questions.

Anti-obesity pill, a probe destined for the sun, and the medicinal side of cannabis

Dr Karl is back from his break and joins Rhod to answer more of your science questions.

Chris Smith and the team look at growing lungs in a lab, hyperloops and how to keep elephants off farms.

5 live Science meet a woman who made history 40 years ago simply by being born

While Dr Karl is away, Rhod is joined by science journalist and author Bianca Nogrady and Dr. Alice Williamson from the School of Chemistry at the University of Sydney.

The latest science news featuring, a new type of painkiller that lasts 3 months, how cosmic rays can identify radioactive waste and a robot that can teach itself chemistry.

Chris Smith and the Naked Scientists explore a surprising new way to fight cancer, a virtual cure for fear of heights and more.

In Dr Karl's absence Rhod is joined by science journalist and author Bianca Nogrady and Dr. Alice Williamson from the School of Chemistry at the University of Sydney.

The Naked Scientists tackle your questions. They're asked if you can train your goldfish? Also, does light weigh anything?