LifeThe Visit: What aliens would really mean for us as humans We're prepared for visiting aliens, but not for the feelings they could prompt, says Michael Madsen, the film-maker behind The Visit: An Alien EncounterCultureLab
EarthSaving the natural world may rely on memories of its beauty On the seventh of 12 days of CultureLab, Gail Vines looks at books on the erosion of natural diversity and its chances of future salvation CultureLab