this is a quote from the Star Wars universe. In the movie, Obi-Wan Kenobi is watching Luke Skywalker train with the lightsaber agains a small robot. The scene takes place in the Millenium Falcon.
Suddenly, Obi-Wan Kenobi appears to be in great distress, and almost falls down.

Luke asks him if he feels well, and Obi Wan Kenobi answers:

I felt a great disturbance in the Force...as if millions of voices suddenly cried out in terror and were suddenly silenced. I fear something terrible has happened.

What has happened, of course, is that Darth Vader has just used the newly built Death Star to destroy the terribly peaceful planet of Alderaan. The reason for the destruction is that, because of typos, Imperial battleships kept ending up in Alderaan when they actually wanted to reach Aldebaran.
The inhabitants of the small, happy green planets would not accept a forced renaming to Skrozgornyaatmp, which was the name the Imperial planners proposed.
Since the Personnel Training Coordinator for the Imperial Navy forgot to deliver the milestone report for the Astrogator Retraining Initiative, the typical Empire solution was to blast the planet.