Endurance: it's important in every race, including the space race, even though many pundits would argue that it kind of fizzled a long time ago. Thirty-three years prior to now, NASA's Voyager 1 began its journey to check in on the outer planets. It accomplished that goal in 1989, and has since moved on to bigger and better things -- you know, like leaving the solar system. Ten billion miles away, Voyager 1's Low-Energy Charged Particle Instrument is spitting out "solid zeroes," which means it's not detecting any more outward movement from solar winds. The heliopause (read: the official edge of the solar system) is just a few short years away for th