> "As a synthetic material, metallic hydrogen would also have endless applications. First off, it is believed to have superconducting properties at room tempera

> "As a synthetic material, metallic hydrogen would also have endless applications. First off, it is believed to have superconducting properties at room temperature and is meta-stable (meaning that it will retain its solidity once it has been brought back to normal pressure)." Will it burn? Detonate? Fascinating.