Six years ago, the Voyager 1 spacecraft informed scientists that it had become the first man-made object to enter interstellar space. Now, Voyager 2 has begun to return signs that its own exit from the Solar System could be coming soon.
Voyager 1, the probe which became the first man-made object to leave the solar system in 2012, has been away from home for a long, long time — approximately 40 years. It’s still been beaming back reams of data and, in its off time, sending extremely ill-advised texts to distant…