Discover what the most abundant element on Earth is. Learn why iron dominates the planet, which elements rule the crust and ...

The Acasta Gneiss is known as one of the oldest rocks on the Earth, estimated to be about 4 billion years old, located in the ...

For decades, helium has been produced with natural gas, generating huge carbon emissions. Now, geologists are looking for new helium sources — and finding enormous "carbon-free" reservoirs that could ...