In this discussion, Jonathan Amos, BBC science correspondent, sheds light on the groundbreaking first civilian spacewalk by Jared Isaacman and Sarah Gillis. Is it history or a billionaire’s joyride? Claire Corkill tackles nuclear waste management challenges at Sellafield, emphasizing urgent need for safe storage solutions. Ellie Carpenter introduces the concept of nuclear semiotics, exploring how to warn future generations about nuclear dangers. It's a riveting dive into space exploration and the complexities of radioactive waste management!