Which country unveiled the world’s most powerful laser?

Explanation

– Romania unveiled a facility housing one of the world’s most powerful lasers, part of the Extreme Light Infrastructure (ELI) research project.
– The facility is designed for advanced physics research, including studies in nuclear physics and materials science.
– The ELI initiative is a multinational European research infrastructure project with facilities across several countries.
– Such high-power laser systems support cutting-edge scientific experiments not possible with conventional laser technology.