What the future holds for digital data storage goes under the spotlight this week - how can we ensure that what we record today - on film, discs or up in the cloud - remains readable for years to come? Plus, news of what the Planck probe has revealed about the early Universe, giant squid, an update from the Mars Curiosity mission, eye implants and nanoparticles to track stem cells... Like this podcast? Please help us by supporting the Naked Scientists)