Halley's comet is ~11 km in diameter, which makes it visible to the naked eye when it's close enough. Potentially astronomers will be able to spot this car at s

Halley's comet is ~11 km in diameter, which makes it visible to the naked eye when it's close enough. Potentially astronomers will be able to spot this car at some point in the future, but I doubt that will give the same wow factor to the average joe.