Chinese scientists break a historic barrier and achieve the highest plasma density in a nuclear fusion reactor.

In a few picoseconds (trillionths of a second), a small, thin piece of copper momentarily becomes dense plasma, specifically a state called warm dense matter, warm being a relative term – the metal is ...

People are familiar with three states of matter of solid, liquid and gas. There is also a fourth state of matter, called plasma. It was first identified in a laboratory in the late 1870s by Sir ...