Light has been transformed into a ‘supersolid’ for the first time

“Supersolids are strange materials that behave like both a solid and a fluid due to quantum effects – and now researchers have created an intriguing new type of supersolid from laser light”

Full articles:

https://www.newscientist.com/article/2470908-light-has-been-transformed-into-a-supersolid-for-the-first-time/

https://www.livescience.com/physics-mathematics/scientists-turn-light-into-a-supersolid-for-the-1st-time-ever-what-that-means-and-why-it-matters