For the first time, researchers transformed light into a quantum crystalline structure to create a "supersolid" that's both ...

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

Primordial helium from the beginning of the solar system may be stuck inside Earth's solid core ... show that the same interpretation can be applied to the liquid part." Figuring out how helium-3 got ...

Earth’s core could contain helium from the early solar system. The noble gas tucks into gaps in iron crystals under high pressure and temperature.

Figuring out how helium-3 got incorporated into the core during Earth's formation is very important for understanding when the planet formed, Olson said. Light gases like helium hung around in the ...

In fact, solid iron at high temperature ... show that the same interpretation can be applied to the liquid part." Figuring out how helium-3 got incorporated into the core during Earth's formation ...

The discovery that helium ... solid phase of the core," Olson said. "But because the core almost certainly formed in a liquid state, there is more work to be done to show that the same ...