How many hurricanes can there be simultaneously? 12 September 2017 As Hurricane Irma barrelled toward Florida and Hurricane Katia hammered Mexico, Hurricane Jose was waiting.... read more
Why there no Category 6 hurricanes 8 September 2017 Despite Irma's unprecedented strength the rumour is false. There are no Category 6 hurricanes for... read more
Mars’s dramatic climate variations are driven by the Sun 10 September 2012 On Mars's poles there are ice caps of ice and dust with layers that reflect... read more
