Jim Bickford is leading the Thin Film Isotope Nuclear Engine Rocket (TFINER) project to develop a system for propelling a craft through space faster and farther than ever before. This technology has the potential to enable speeds of 0.5% of light speed and near term capability for 0.1% of light speed. This would be ten ...

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Link :
https://www.nextbigfuture.com/2025/08/thin-film-nuclear-with-californium-for-fast-gravitational-lensing-missions.html