Why discovering gravitational waves changes everything

Einstein’s theory of general relativity predicted something called gravitational waves. Science has tried to prove their existence for decades but failed to detect them; until now.
This discovery could lead to breakthroughs in our understanding of the strangest and darkest reaches of the universe, including black holes and exploding stars.

The Guardian on YouTube:

[theGuardian]

Einstein’s theory of general relativity predicted something called gravitational waves. Science has tried to prove their existence for decades but failed to detect them; until now. This discovery could lead to breakthroughs in our understanding of the strangest and darkest reaches of the universe, including black holes and exploding stars

[marcofogli]

Interesting, let's see how the study goes.

[fnanfne]

You failed to answer your own question as to why this discovery will "change everything"!!!!

[shalashaskarevolver]

i'm guessing that this proves that space contains somr sort of matter( some call it black matter) since the waves were able to travel through it. and mayb