British startup Magdrive claims to have developed a satellite that uses solid metal as a source of fuel. Its founder says it could one day be used to clean up space junk — by gobbling up dead satellites. As CNN reports, the company came up with a propulsion system, dubbed Warlock, that ionizes solid metal, instead of current electric systems that generate power by ionizing pressurized gas. The goal is to balance efficiency with power output. "Chemical propulsion has very high thrust, but its efficiency — or its miles per gallon, if you like — is very poor," Magdrive founder […]

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Link :
https://futurism.com/startup-spacecraft-eats-dead-satellites-fuel