Here's a bit from the YouTube description:
Dream away to the spectacular visual wonders of the universe. The unforgettable imagery shot by The Hubble Space Telescope is well known. This presentation includes some of its more recently released photographs. The ESO's output may be a bit less well known, but the results are no less spectacular. These are photographed from right here on earth, from which we selected the absolute best shots.And so it goes.
Enjoy the splendor of our universe, the spectacular sights of our cosmos.
With special thanks to Carl Sagan!