Research papers suggest the historic operation occurred in February last year, a manoeuvre that could have military implications.

Chinese researchers appear to have revealed a previously unknown satellite-to-satellite refuelling operation in high Earth orbit, putting the country at the forefront of a technology that could reshape the space race. In a paper undergoing peer review for the Journal of Deep Space Exploration, the team said China had “successfully provided room-temperature propellant refuelling for a high-orbit BeiDou satellite for the first time”. The researchers from the state-funded Deep Space Exploration…

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