Earth may not be rare after all. New data from NASA’s Kepler mission suggests that the universe is chock-a-block with planets. More than a thousand new possible planets have just been found, and more than fifty of these might be suitable for life. Ready for cosmic company? We discuss the results of the Kepler mission in a roundtable with some of its top scientists.
Meanwhile, the Voyager spacecraft continues to be humanity’s point man in the race to interstellar space. Poised to leave our solar system, we reflect on the mission – including its on-board messages for aliens.