New claim staked for metallic hydrogen
Some experts doubt report of creating elusive material

TIGHT SQUEEZE As scientists pressed hydrogen between two diamonds, it changed from transparent (left) to black (middle) and, finally, to a reflective state (right). That reflectivity indicates that the hydrogen transformed into a metal, researchers claim.
Ranga Dias, I.F. Silvera
This article is only available to Science News subscribers.
Subscribers, enter your e-mail address to access our archives.
