When NASA astronauts return to the surface of the Moon in the Artemis III mission, the plan is to use a modified SpaceX Starship as their lunar lander. NASA announced last week that SpaceX has now demonstrated an important capability of the vacuum-optimized Raptor engine that will be used for the lander: an extreme cold … Continue reading 'SpaceX Test Fires a Raptor Engine, Simulating a Lunar Landing'
that one challenge that differentiates Artemis missions from those in low Earth orbit is that the landers may sit in space without firing for an extended period of time, “causing the temperature of the hardware to drop to a level below what they would experience on a much shorter low Earth orbit mission.”
The Starship HLS will be powered by two variants of the company’s Raptor engines—one optimized to operate in atmospheric pressure at sea-level and one optimized to operate in space, or in a vacuum, where there is no atmosphere. The 281-second throttle test demonstrated the engine’s ability to meet the demands of a descent burn to the lunar surface. Credit: SpaceX
Like any space hardware, testing critical technologies and hardware under simulated and actual flight conditions is key. On
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