Are we on the brink of discovering life on exoplanets?
One of the fasting-growing fields of astronomy is the search for exoplanets - planets that exist outside of our own solar system. The first discoveries were made in the early 1990s, and since then over 3,500 planets have been identified. Associate professor at the Japan Aerospace Exploration Agency Elizabeth Tasker explained to Justin Webb how the next generation of instruments will be able to explore the atmosphere of potentially life-bearing planets. (Image: Exoplanet illustration. Credit: Getty Images)