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NASA's Psyche spacecraft is flying to a metal asteroid. So, why did it just visit Mars?

NASA's Psyche flyby of Mars highlights how gravity assists help spacecraft gain speed, conserve fuel and travel across the solar system.

NASA's Psyche spacecraft is flying to a metal asteroid. So, why did it just visit Mars?
Image: Space.com

NASA's Psyche flyby of Mars highlights how gravity assists help spacecraft gain speed, conserve fuel and travel across the solar system.

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