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An Enormous Gravity ‘Hum’ Moves Through the Universe

The 100-meter Green Bank Telescope has precisely measured the timing of dozens of pulsars over the course of 15 years. By Jonathan O’Callaghan Contributing Writer Introduction Astronomers have found an extra-low hum rumbling through the universe. The discovery, announced today, shows that extra-large ripples in space-time are constantly squashing and changing the shape of space. Read More…