NASA’s $1.4 billion Psyche mission has successfully reignited its plasma thrusters and switched to a backup fuel line as it journeys toward an unexplored metal-rich asteroid. Utilizing an efficient solar electric propulsion system powered by xenon gas, the spacecraft’s plasma engines provide lower thrust but can sustain prolonged operation to effectively navigate through space.
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A Cracked Piece of Metal Self-Healed In Experiment That Stunned Scientists
Researchers have confirmed that metals can self-heal from nanoscale fatigue damage, an observation that aligns with predictions made in 2013 by Texas A&M's Michael Demkowicz. The healing process, which occurs at room temperature and may involve cold welding in vacuum environments, suggests potential for advancements in metal durability and applications. Need More Context? 🔎
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