Three thought experiments involving “demons” have haunted physics for centuries. What should we make of them today?

Star clusters are of great importance in any galaxy: they are the birthplace of new stars, often containing massive stars of ...

Dust devils on Mars form when air near the warm surface heats up and rises through cooler surrounding air, causing nearby air ...

The ocean is saturated with microplastics. While we know the location of the great garbage patches, where plastic particles ...