Breakthrough Starshot, the ambitious $100 million initiative to send tiny spacecraft to Alpha Centauri using light propulsion, has largely faded from public view despite technological advances in solar sail design. Recent developments in metajet light propulsion materials suggest interstellar travel is becoming technically closer, though major hurdles remain before crewed missions become feasible.
·Solar sail technology is advancing with new lightsail materials bringing interstellar probe concepts closer to reality
·Metajets powered by light propulsion could theoretically enable a 20-year mission to Alpha Centauri
·The original Breakthrough Starshot mission has largely disappeared from headlines despite its $100 million backing from Stephen Hawking and billionaire investors
·Engineering challenges persist in scaling light propulsion concepts from micro-probes to human-carrying spacecraft
drawn from Scientific American, ABC News - Breaking News, Latest News and Videos, NextBigFuture.com, Vocal · updated 29d ago