Two private companies are partnering up to establish a repeatable debris removal service for low Earth orbit. The U.S. firm Portal Space Systems and Australian startup Paladin Space are working ...
MIDLAND, Texas--(BUSINESS WIRE)--AST SpaceMobile, Inc. (“AST SpaceMobile”) (NASDAQ: ASTS), the company building the first and only space-based cellular broadband network accessible directly by ...
Abstract: This work introduces a metamaterial (MTM)-integrated space-time coding (STC) transmitting array to detect the multitarget vital sign signals including respiration and heart rates (HR). A ...
Using the Atacama Large Millimeter/submillimeter Array (ALMA), scientists have discovered that the interstellar invader comet 3I/ATLAS formed in a much colder region of the Milky Way than our solar ...
Abstract: Direction modulation is a modulation technique where the beam direction changes with the transmission time, providing beam scanning within the pulse transmission time for array antennas. For ...
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