LIGO Detects Gravitational Waves Again

The twin Laser Interferometer Gravitational-wave Observatory (LIGO) has detected gravitational waves for the second time. The signal was produced by two black holes colliding 1.4 billion light years away. For the second time, scientists have directly detected gravitational waves — ripples through the fabric of space-time, created by extreme, cataclysmic events in the distant universe. […]
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