
Key points:
- Scientists have been hunting for signs of gravitational waves created by supermassive black holes
- They have observed fast-spinning stars over decades using radio telescopes around the world, looking for changes in timing
- The first evidence that these low-frequency gravitational waves may exist has now been published — but the results still need to be confirmed
'It's like an ocean': Space-time is warped by a background of gravitational waves, and astronomers may have detected it for the first time
Astronomers around the world have found the first hints of elusive fingerprint of gravitational waves created by monster black holes at the centre of galaxies.
