One of the best timelapses ever - Above the VLT

Wow amazing thank you!!!!!

I don't think I could say anything else the video says it all

I believe the laser is used to correct the optics. Not sure exactly how it works but even at high altitude where these telescopes are there is some disortion due to the atmosphere. They fire the laser and they use the result to measure the disortion and they can correct what they are seeing through the telescope from the laser readings.

I'm sure there will be a website somewhere to properly explain it.

Cool video btw