Black holes shake the universe

Black Holes, Space, Universe

Abysses in space: Black holes are bottomless pits in space-time – and yet they are incredibly dynamic. When they collide, they vibrate the entire universe. Nobody can imagine that, every attempt at illustration leads astray. However, the equations of the General Theory of Relativity describe the bizarre processes very precisely, as measurements have meanwhile proven.
© Illustration: Mark Garlick/Science Photo Library

The largest energy ejectors in the universe are invisible – but astrophysicists can now measure their gravitational waves on a weekly basis.

by RÜDIGER VAAS

When the first measurement of gravitational waves was announced on February 11, 2016, the sensational news graced the front pages of many newspapers around the world. Evidence of these tiny ripples in space-time, predicted by Albert Einstein as early as 1916, is now commonplace for astronomers – and mostly not even worth a side note for the big media. The extremely difficult measurements are getting better and better, more frequent and, above all, more meaningful in terms of their scientific importance.

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