Yes, better report to the authorities before you go waving a huge laser at the moon. In my home country, owning a laser this big requires a permit in the first

Yes, better report to the authorities before you go waving a huge laser at the moon. In my home country, owning a laser this big requires a permit in the first place. You would definitely need to report it to the local aviation authority, who would re-route flights and notify aviators. A few weeks ago there was a music festival with some big laser decorations and they actually changed the approach path to the largest airport in the country for the weekend.