TORONTO -- Launched 44 years ago, NASA’s Voyager 1 spacecraft is now the most distant human-made object in space – and it has sent back some new findings from past the edge of our solar system. Travelling at approximately 61,152 kilometres per hour, Voyager 1 flew by Jupiter in 1979, then Saturn in late 1980, and has now crossed through the heliopause, the solar system’s border with interstellar space, also called the interstellar medium. A new study led by Cornell University and published in the journal Nature Astronomy details how Voyager 1’s instruments have detected the “constant drone of interstellar gas” or plasma waves, according to a release.