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In order to be able to carry heavier payloads through deep space, NASA designed a lightweight rocket engine nozzle made of aluminum that can still withstand the heat of launches.
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Stop us if you’ve heard this one before, but a Russian spacecraft docked with the International Space Station has sprung a leak. On Saturday morning, Russia’s Roscosmos space agency disclosed on Telegram that a Progress cargo ship docked with the ISS had lost cabin pressure. NASA later said the depressurization was due to a coolant leak.