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Nancy Grace Roman: A Tiny Mirror’s Big Plan

NASA’s starshade could reveal distant worlds, but it’s the technology, not the planets, that’s truly groundbreaking.

NASA’s Nancy Grace Roman Space Telescope is set to launch, armed with a coronagraph that could directly image planets. But it’s the tiny, deformable mirrors and advanced adaptive optics that make the project truly revolutionary. These mirrors, each the size of your palm, are packed with 2,300 actuators that can reshape them in space, blocking out starlight to reveal faint planets. The system requires supersensitive detectors to catch the few photons from distant worlds. Scientists hope to test the coronagraph on known exoplanets and gather data about star systems, potentially paving the way for future telescopes like the Habitable Worlds Observatory. It’s not just about finding alien worlds; it’s about pushing the boundaries of what’s possible in space observation.


O coronografar, equipado com espelhos deformáveis do tamanho de sua mão e óptica adaptativa avançada, permitirá à Telescópio Espacial Nancy Grace Roman capturar imagens diretas de planetas distantes. Mas é a tecnologia, não os planetas, que é verdadeiramente revolucionária. Estes espelhos, cada um do tamanho de sua mão, estão equipados com cerca de 2.300 actuadores que podem reformar suas formas em espaço, bloqueando a luz das estrelas para revelar planetas fracos. O sistema requer detectores sensíveis a super sensíveis para capturar poucos fótons de mundos distantes. Os cientistas esperam testar o coronografar em exoplanetas conhecidos e coletar dados sobre sistemas estelares, potencialmente pavimentando o caminho para futuros telescópios como o Observatório das Mundos Habitáveis.

Original source:  https://www.wired.com/story/nasas-nancy-grace-roman-space-telescope-coronagraph-leap/
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