The hidden problem with reaching our nearest neighbor star
In short: While we often cite the 75,000-year journey of Voyager 1 as proof that interstellar travel is impossible, modern technology offers a faster route. However, that speed creates a new, more complex obstacle for scientific exploration.
The Breakthrough Starshot concept could propel gram-scale probes to 20% of the speed of light, reaching Alpha Centauri in roughly 20 years. At that velocity, a probe would cross the entire system in mere hours, leaving only seconds to study a planet like Proxima b.
To solve this, astrophysicists René Heller and Michael Hippke proposed 'photogravitational braking.' This method uses the light and gravity of Alpha Centauri A and B to slow the craft down, allowing it to be captured into orbit around Proxima Centauri. This approach extends the journey to about 75 years but enables a permanent stay rather than a fleeting flyby.
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- Summary by Intellect · source: Why Reaching the Nearest Star Has a Problem Nobody Talks About
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