Spacecraft / Exploration

24 Billion Kilometres Away — And It's Still Whispering Home

2026-08-25
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It left Earth in 1977 and has never stopped talking.

It left Earth in 1977 and has never stopped talking. Right now, Voyager 1 is drifting through interstellar space — the void between stars — more than 24 billion kilometres from the planet that built it. No human object has ever been further. Its radio signal, moving at the speed of light, still takes over 22 hours to cross that gap and reach our dishes on the ground. We sent a spacecraft powered by a nuclear battery so far that sunlight is essentially useless, and it is still reporting back. It even carries the Golden Record — sounds and greetings from Earth, in case anyone out there ever finds it. In 2012, it crossed the heliopause, the outer boundary of the Sun's own bubble of influence, and entered true interstellar space. We are already, quietly, between the stars. Follow Deep Field Vault for more of the universe.

LAUNCHED 1977

  • Still operational
  • Never stopped transmitting

24 BILLION KM AWAY

  • Farthest human-made object
  • Now in interstellar space

22+ HOURS

  • Time for its signal
  • to reach Earth at light speed

CROSSED THE HELIOPAUSE

  • 2012
  • Beyond the Sun's influence

THE GOLDEN RECORD

  • Sounds of Earth
  • A message to the cosmos
Imagery: NASA / NASA/JPL (public domain) · View original on NASA ↗
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