In Our Time: Exoplanets [mp3] BBC: "Melvyn Bragg and his guests discuss planets outside our solar system, known as exoplanets." Read on

The future of interstellar travel [mp3] Radio ABC: "We meet the long-term thinkers and planners—the space visionaries not afraid to think outside the square." Read on

A golden age of astronomy [mp3] Radio ABC: "Powerful new telescopes are allowing us to explore the once unimaginable. But astronomy is fast becoming as much about data management and interpretation as it is about stargazing." Read on

Off earth mining and galactic gas stations [mp3] Radio ABC: "Rick Tumlinson is a US businessman whose ambition is to mine asteroids and to then use the material he extracts to power spacecraft and satellites. He talks of developing galactic gas stations." Read on