Mars Is Within Reach... Alpha Centauri Is Not

Mars is a voyage of months, but Alpha Centauri demands a leap of thousands of years . The sheer scale is staggering: Mars is over 136,000 times closer to us than our nearest star system . We can send robots to Mars in under a year; reaching Alpha Centauri requires breakthroughs in physics or multi-generational sacrifice . Even light, the fastest thing in the universe, takes over four years to cross the gulf to the next sta