Gravitational Waves Detected
An exciting announcement last week marked another milestone in our understanding of the universe. Almost 100 years ago Albert Einstein predicted the existence of gravitational waves, or ripples in the fabric of space-time. The existence of gravitational waves had been confirmed for the first time in the late 1970s, but they were not able to detect them and prove their existence here on Earth. Not until last week: scientists were finally able to directly observe ripples of gravitational waves.