Arlette Aluma Kasongo

The ISS's structural integrity is far more marginal than is being publicly discussed. We are having multiple, and increasingly frequent, leaks from heavily fatigued node segments in the Russian section. When Aluminum gets flexed it fatigues and gets harder, increasing its tendency to crack. Cracks concentrate forces at their tips, and spread over time. Multiple cracks have been discovered. There is no "factor of safety" associated with this failure mode. None of the structural pressure vessels are meant to crack. We are not even single fault tolerant on the structural integrity of the station. We could wake up tomorrow and find, with zero warning, that it has failed catastrophically. Whether that means a leak slow enough to close some hatches, get the crew out or at least into safer parts of the station, is a roll of the dice. It could also depressurize in less than a minute.

L’Université d’Ottawa célèbre aujourd’hui la mise en chantier des travaux au Centre de recherche médicale de pointe, qui ouvrira en 2026! Ses sept étages réuniront de la crème de la recherche, des soins cliniques et de l’entrepreneuriat pour accélérer les travaux d’avant-garde.