The simplest explanation of why we should care about gravitational waves

If you look with visible light as far as we can look in the universe, the universe is no longer transparent, it becomes opaque. There’s nothing you can do about that.

If you could see [gravitational waves], you can see back past where you can’t see with physical light. That would be cool. We’d have direct access to something that’s farther away than we can hope to see otherwise. LINK

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