Aliens

Available for over a year

What do you think about the possibility of extra- terrestrial life? Are we alone in the universe? And what do aliens reveal about us? Bridget Kendall asks ecologist Chris Thomas, science fiction writer Nnedi Okorafor, and psychologist Richard McNally to pool thoughts about what aliens mean to us. (Illustration: Artist impression of alien spaceship hovering over a city landscape. By Shan Pillay)