After visiting Pluto, NASA’s New Horizons spacecraft has reached another cosmic milestone.
One little ship notching two space records ought to be accomplishment enough. But New Horizons is about to make headlines again. At precisely 8:42 a.m. EDT tomorrow, it will pass an invisible line in space that will place it 7.5 billion kilometers from Earth. That factors out to 50 astronomical units (AU)—or 50 times the distance from the Earth to the Sun—making New Horizons one of only a small handful of spacecraft to pass that cosmic milestone.
For more, check out this Time/MSN story.