Advances in Microsatellite Propulsion Propel Deep-Space Exploration, Maneuverability (.PDF Download)

The word far is an understatement when it comes to the vast distances between celestial bodies. The distance between the sun and our farthest planet Neptune is 2.7 billion miles—it would take astronauts roughly a dozen years to get there using current technology. The farther out into space you go, miles start to lose their meaning and light-years come into play. To put that into perspective, Alpha Centauri A/B, our closest neighboring star (actually, a binary system of two suns), is 4.3

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