Twisted lasers could let us send messages with gravitational waves
Ripples in space-time called gravitational waves are normally associated with massive objects like black holes, but we could make our own using lasers – and perhaps even use them to communicate
![Twisted lasers could let us send messages with gravitational waves](https://images.newscientist.com/wp-content/uploads/2023/09/22112712/SEI_172755805.jpg)
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