Originally Posted by Insan1tyOne
Someone do an ELI5 of why this is important other than Einstein is still getting proven correct all these years later?
It's a completely new window for looking at the universe and understanding it. At the moment, we are limited to just the electro-magnetism waves (visible light, radio waves, x-rays, gamma rays etc. etc.).
This can be problematic when trying to look at a black hole for instance. In time with a refined enough gravitational wave telescope, we will actually be able to see black holes. With a good detector, we should be able to spot many, many black holes we didn't even know existed. Also currently all we can do atm, is see as far back as the Microwave background 380,000 years after the big bang give or take. With gravity waves we will be able to look past that, all the way to the beginning and actually see the big bang occur eventually.
Literally all of our scientific knowledge is based on data collection based on Maxwells equations. With this (and time and a lot of money, not any time in the near future, but 50+ years down the road) we will be able to look at everything from the perspective of gravitational waves as well, which will most likely lead to a vast number of doors being unlocked for new, undiscovered, and previously unknown aspects of the universe and fundamental physics.
It has a very real chance of being the building blocks of another technological explosion and a much better understanding of our universe. For all intent and purpose, we now have a second set of Maxwells equations, which were the basis for the birth of relativity and quantum mechanics.
This is a far more important discovery than that of the Higg's Boson. Easily the biggest scientific discovery of the last 20 years at least.