ScienceFirefly Aerospace Makes A Comeback With Lightning 1 Engine Demo In Texas Two years after declaring bankruptcy, Firefly Space System reemerges with new branding and the test launching of its innovative engine, Lightning 1. Unlike traditional engines, it has a self-pressurizing system and runs only on methane.by Charmagne Nojas
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ScienceMysterious Signal In The Center Of The Milky Way Comes From Old Stars, Not Dark Matterby Jean-Pierre Chigne
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