Critics argue that it has become a pipeline for overseas workers willing to work for lower pay and is taking job opportunities from Americans. But supporters say the program is crucial to attract top global talent, fill specialised roles and drive innovation.

The research sheds new light on how the early universe behaved under extreme heat and density. Earlier attempts at temperature measurements were often uncertain, influenced by factors such as whether they reflected the QGP phase itself or were skewed by Doppler-like effects caused by the plasma’s rapid motion