Metallic hydrogen is here! Well, almost.

Scientists work on amazing things, and one of the most intriguing and exciting recent developments is the possibility of creating metallic hydrogen.  Image credit: Randy Montoya/Sandia National Labs Provide enough pressure (measured in ‘atmospheres’) and almost anything can become incredibly dense, strong and indestructible (ever heard of a black hole?).  In the 1930s, the theory…