Earth's magnetic field is generated by the churn of its liquid nickel-iron outer core, but it is not a constant feature.

A UT San Antonio-led international research team has identified chitin, the primary organic component of modern crab shells ...

Deep inside Earth, two massive hot rock structures have been quietly shaping the planet’s magnetic field for millions of ...

Hidden mega-structures deep inside Earth may have been quietly steering our planet’s magnetic field—and rewriting what we ...

Astronomers have announced the discovery of what appears to be an "ice cold Earth," a chilly but potentially habitable rocky ...

NASA has selected two Earth science missions for development, one focused on studying the atmosphere and the other on terrestrial ecosystems and ice.

The first false-color image from ESA's newly operational Biomass satellite shows off a unique perspective of the rainforests, ...