National Geographic: NASA has confirmed that Voyager 1 has slipped from the solar system. Launched in 1977, the spacecraft is now more than 11.66 billion miles from the sun, becoming the first to enter interstellar space.
Image: This artist’s concept depicts NASA’s Voyager 1 spacecraft entering interstellar space, or the space between stars. Interstellar space is dominated by the plasma, or ionized gas, that was ejected by the death of nearby giant stars millions of years ago. (NASA/JPL-Caltech)