Ian Sample speaks to the cosmologist Dr Andrew Pontzen about the European Space Agency’s Euclid mission, which hopes to uncover more about two of the universe’s most baffling components: dark energy and dark matter. Pontzen explains what the probe will be looking for and how its findings will contribute to our understanding of the structure and evolution of the cosmos. Help support our independent journalism at <a href="https://www.theguardian.com/sciencepod">theguardian.com/sciencepod</a>
