The Voyagers Found a Small Surprise in Interstellar Space
The missions that humankind has sent farthest into space, a pair of NASA spacecraft called the Voyagers, are billions of miles from Earth. The last time one of them took a picture of its surroundings was in 1990, after flying by Jupiter, Saturn, Neptune, and Uranus on its way to interstellar space, the mysterious expanse between stars. This far beyond the planets, there’s not much to see.But there are some things to feel, in the sense that a spacefaring machine can feel something.