NASA tests deployment of Roman Space Telescope's 'visor'

The "visor" for NASA's Nancy Grace Roman Space Telescope recently completed several environmental tests simulating the conditions it will experience during launch and in space. Called the Deployable Aperture Cover, this large ...

Promising early tests for variable-thrust landing engine

As part of ESA's Future Launchers Preparatory Program (FLPP), the first phase of hot-fire tests has been completed on a new, variable-thrust rocket engine in Warsaw, Poland. The engine is being developed by a Polish consortium ...

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