As the end of the article discusses, this means that scientists have a whole new way of observing the universe. What we saw before was mostly along the EM spectrum—radio waves, visible light, etc. This is a way of looking at distortions in the actual fabric of spacetime.<p>Hard to say what the practical applications will be, but it&#x27;s akin to asking Galileo what the practical applications of a telescope are. There probably aren&#x27;t any if you&#x27;re a 17th-century merchant or something, but a few decades down the line…