The Voyager 1 probe, launched in 1977, is now so far from Earth that a radio signal travelling at the speed of light takes over 22 hours to reach it, and it is still sending data back from interstella

Science

The Voyager 1 Probe, Launched In 1977, Is Now So Far From Earth That A Radio Signal Travelling At The Speed Of Light Takes Over 22 Hours To Reach It, And It Is Still Sending Data Back From Interstella

By Space Daily

Voyager 1, launched in 1977, is now so far from Earth that a radio signal travelling at the speed of light takes more than 22 hours to reach it. And it is still working, still sending data back from interstellar space, running on a nuclear power sour ...Read more