Space/Science — HabitableZone

Space/Science » in reply to re: No, it does not work in reverse

:( sorry, I was in a silly mood

The 'sodium laser' only works for adaptive optics because there is a layer of sodium atoms ~90 km up - so it is only useful for observing things above that height... I can see no advantage for a laser at 589 nm in the area of spying... except to spy on sattelites, that is being done already and is not a big secret.

Log in or register to post.

The whole thread (37 posts)