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Portal Space Systems brings its solar thermal propulsion system up to full power during test
Portal Space Systems says it has successfully tested its solar thermal propulsion system at operational temperatures inside a vacuum chamber.
The move will allow Portal to eventually triple its workforce as it moves toward producing one spacecraft per month by 2027. EVERETT — Space start-up Portal Space Systems is building a ...
Dom O'Leary is a contirbutor on Game Rant. He has over 6 years of experience in writing, covering everything from games news and reviews to commercial writing and editing. He's been a lover of games ...
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