Breakthrough cryocooler makes crewed Mars missions possible NASA has tested a kind of super-fridge that may hold the key to any future crewed mission to Mars. Without the new cryogenic cooler, a ship to Mars would reach the Red Planet with empty fuel tanks, wh...

Un super‑frigo spatial testé par la NASA garde le carburant cryogénique à -250 °C sans pertes : clé d’un retour sur Mars.
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