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Plasma jet engines face a major hurdle: extreme power demands

Plasma jet engines promise a future of fuel-free, electrically driven flight, but the technology faces a stubborn obstacle ...
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Russian scientists build plasma engine that could reach Mars in 30 days, making Starship look outdated

The coming decades of space exploration hinge on a single, stubborn number: the 225 million kilometres between Earth and Mars. Chemical rockets, the workhorses of every space programme to date, take ...