Hydrogen turned into metal – no resistance conducting of electricity

It's interesting to think that such a thing may potentially be stable at useful temperatures and pressures.

I'm also interested to hear more about the plans to reproduce the sample for other testing, since the 'metallic hydrogen core' idea gets thrown around quite often when talking about gas giant planets. Being able to actually study the material's properties would possibly advance that aspect of our knowledge of planetary formation significantly.

Note the cardboard sign on the device in the background in the video says 495 GPa; this is over 70 million pounds per square inch of pressure!

this is very big news.