This big balloon floating gently above Vagabond makes me think about a goldfish, escaped from its bowl to visit the Arctic and check global warming. It set up with us for few months, to sound wind, humidity, pressure and temperature in altitude. For now, the sensors it is carrying towards the sky are confirming that the weather has been particularly cold for one week! Temperature this morning: -25°C. Wind 25 km/h, equivalent temperature -46°C. On board, we have to be more careful to keep a minimum comfort and enjoy the last hours of night, in the warmth. We can already feel the permanent daylight...