Mankind is still busy exploring our own solar system, but that isn’t stopping NASA from setting its sights at a destination so distant it would take decades for a spacecraft to even get there. A tentative mission is currently being outlined that would see NASA send a spacecraft on an interstellar mission to explore the Alpha Centauri system.
The only spacecraft that’s ever left our solar system is Voyager 1, and it’s travelling through interstellar space at about 30,000 miles per hour. Although Alpha Centauri is right next door in galactic terms, it’s still 4.3 light-years away, or about 25 trillion miles to us Earthlings. A spacecraft like Voyager would take nearly 80,000 years to get there.
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Source: [H]ardOCP – NASA Has Begun Plans for a 2069 Interstellar Mission