Fusion rocket propulsion could enable spacecraft to reach 10% of light speed within decades, transforming interstellar travel from science fiction to achievable reality and revolutionizing humanity's exploration of the solar system and beyond.
Breakthrough Starshot's ambitious plan to reach Alpha Centauri stalled after spending only $4.5 million of a promised $100 million, revealing that interstellar travel requires sustained institutional commitment beyond one billionaire's fortune and faces massive technical hurdles from laser beam control to geopolitical weapons concerns.
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