No one knows how many expeditionary forces will reach their destination.
Those who stay in the Solar System tell others not to look back once they leave, and they themselves will no longer casually look up at the starry sky, which is meaningless.
People would only pause occasionally during their busy moments of study and work, and silently think of those faces that have gone far away.
Wishing you fair winds and following seas in the distance.
At midnight on January 1, 2500, some subtle changes occurred, seven days after the departure of the last colony ship.
As if counting the seconds, a large radio telescope located in the Pluto settlement was the first to detect some changes.
Scholars quickly calculated their conclusions.
Just now, the speed of light in the vacuum had dropped by one ten-millionth compared to the past standard value.