Nonetheless, in a surprising number of cases its behavior resembles that of an ordinary classical solid ...

The discovery that helium and iron can mix at the temperatures and pressures found at the center of Earth could settle a long ...

Earth appears to be a chill blue planet, but deep down, it’s really a metalhead. Its outer core is mostly molten iron (and ...

Physicists have transformed laser light into a supersolid, marking an entirely new process for achieving this mysterious ...

A rare isotope from the early solar system may be locked in Earth's core, revealing insights into planetary formation ...

Credit: Yuri_Arcurs via Getty Images Primordial helium from the beginning of the solar system may be stuck inside Earth's solid core, new research suggests. The findings could have implications ...

The findings confirm that helium could stay locked in Earth's solid inner core for a long time, Olson told Live Science, but he cautioned that only 4% of the core is solid.

In fact, solid iron at high temperature and pressure could contain up to 3.3% helium, the researchers reported Feb. 25 in the journal Physical Review Letters. The researchers discovered this ...