Milestone · November 18, 2026
Voyager 1 one light-day from Earth
The signal now travels a full day
The signal from the most distant human-made object now takes a full 24 hours to reach Earth: 25.9 billion kilometres.
| Type | Milestone |
|---|---|
| Date | November 18, 2026, 10:17 AM UTC |
| Status | kesin |
| Distance | 25.9 billion km |
| Light time | 24 hours |
| Launch | September 5, 1977 |
| Speed | ~17 km/s |
| From the Sun | ~173 AU |
| Bodies involved | Voyager 1, Earth, Sun |
| Source | NASA/JPL |
