Don't have Telegram yet? Try it now!
https://roboticsandautomationnews.com/2017/01/30/metallic-hydrogen-once-theory-becomes-reality-harvard-physicists-succeed-in-creating-the-holy-grail-of-high-pressure-physics/11032/
Metallic hydrogen, once theory, becomes reality: Harvard physicists succeed in creating 'the holy grail of high-pressure physics'