In 2012, a human machine left the Sun's reach entirely.
In 2012, a human machine left the Sun's reach entirely. It crossed the heliopause — the boundary where our star's influence fades and true interstellar space begins. Voyager 1, launched in 1977, is now over 24 billion kilometres from Earth. That distance is so vast that its radio signal, moving at the speed of light, needs more than 22 hours to complete the journey home. And yet the signal still arrives. Powered by a nuclear battery, this half-century-old spacecraft carries the Golden Record — sounds, music, and greetings from Earth, pressed into metal, drifting through the stars. We didn't just send a probe. We sent a letter, addressed to whoever might one day find it. Follow Deep Field Vault for more of the universe, one staggering truth at a time.