Scientists have discovered that gas inside galaxy clusters moves like liquid in a shaken cup, keeping the clusters warm.
The XRISM satellite measured the speed of hot gas in the Centaurus Cluster, revealing large-scale gas flows caused by collisions between clusters.
The collisions create a 'sloshing' effect, constantly stirring and redistributing energy, which prevents the gas from cooling down.
This discovery provides new insights into how galaxy clusters evolve and stay active, supporting the role of mergers and interactions in shaping the universe.