Why are we looking for earth-sized planets? Can I unshrink a woollen jumper? What does a black hole actually look like? Chris Smith is joined by David Rothery, Anna Ploszajski, Aimee Eckert and Michael Conterio to answer your science questions. Like this podcast? Please help us by <a href="https://www.thenakedscientists.com/donate">supporting the Naked Scientists</a>

A Crash Course in Space Junk

The Naked Scientists flagship science show brings you a lighthearted look at the latest scientific breakthroughs, interviews with the world's top scientists, answers to your science questions and science experiments to try at home.