Entering the unknown: This artist’s impression shows how plasma flows around NASA’s Voyager 1 spacecraft as it gets close to entering interstellar space Nasa’s Voyager 1 is on the verge of becoming the first human-made object to enter interstellar space, scientists say. First launched in 1977, the unmanned spacecraft has been in uncharted territory since last year. Scientists had... 

More than three decades after launching, NASA’s workhorse spacecraft is inching closer to leaving the solar system behind. Currently 11 billion miles away from the sun, Voyager 1 has been exploring the fringes of the solar system since 2004. On Monday, the spacecraft entered a new region, known as the ‘stagnation zone’ – an area close to the very edge of our solar system, affording...