Chicxulub would be hard to predict, but it was 66M years ago. Presumably anyone sending probes that last even a few 100k years would be smart enough to have ad

Chicxulub would be hard to predict, but it was 66M years ago. Presumably anyone sending probes that last even a few 100k years would be smart enough to have advanced sensors and notice if any adjustments are made. Even a very small of energy would correct a distant probe direction to encompass any possible earth position. It will be interesting if the new 'Visitor' is shaped similarly to the previous. Maybe there's a robotic factory a 100 light years away and is turning asteroids into mostly passive sensors and lobbing them at likely looking stars at 100,000 mph to check to see if anything interesting is happening. So the launch would have been 600,000 years ago.