Voyager 1, nearly 50 years in space, still sends signals that take 23 hours to arrive

Voyager 1, launched nearly 50 years ago, continues to transmit signals back to Earth, with each message taking 23 hours to complete the journey. Despite power limitations and partial system failures, the probe remains operational and is the most distant human-made object ever built. It is widely regarded as one of humanity's greatest achievements in space exploration.