Scientists just detected gravitational waves. We’ve entered a whole new world for astronomy. – Vox

About 1.3 billion years ago, two black holes in a remote part of the universe collided with one another. The two objects were so massive that the interaction of their gravities distorted the space and time around them. If you could witness the event up close, it would be like living in a funhouse mirror.One hundred years ago, Albert Einstein predicted that the distortion of spacetime caused by such a collision wouldn’t stop at the site of the collision. Like a ripple on a pond, it would propagate outward in gravitational waves.Today, scientists at the Laser Interferometer Gravitational-Wave Observatory (LIGO) announced, for the very first time, that they’ve directly observed a gravitational wave — proving Einstein right yet again.

Source: Scientists just detected gravitational waves. We’ve entered a whole new world for astronomy. – Vox

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