 So from a presidential debate performance plagued by a supposed bad case of jet lag, we've travelled across the Pacific on the wings of the ancient mirelette in a migration mystery, we've heard how traditional ways of travel between Nunavut and Greenland are under threats due to melting sea ice, and how future 20-hour flights might be designed with our biology in mind. Although some will argue that we shouldn't really be getting on planes so much anyway.