Our planet may have had a recent change of heart. Earth’s inner core may have temporarily stopped rotating relative to the mantle and surface, researchers report in the January 23 Nature Geoscience.

New research suggests Earth’s climate can swing wildly on surprisingly short timescales — even during hot, ice-free ...

At least part of the answer appears to be hiding inside a seemingly random organ. Immune cells inside pigeon livers called ...

Scientists are working to solve a mystery of Earth’s molten outer core, which lies more than 2,000 kilometers beneath our ...

Humanity may already be living far beyond what Earth can sustainably support, according to a sweeping new study analyzing more than 200 years of population and environmental data. Researchers found ...

The liquid iron in Earth's outer core doesn't always behave as expected. When it changed direction in an unexplained way, ESA ...

Planetary scientists have long debated where the material that formed Earth comes from. Despite its location in the inner solar system, they consider it likely that 6–40% of this material must have ...

This week's science news was filled with incredible discoveries hidden deep inside our planet, including a potential answer to the long-standing mystery of how a tributary of the Colorado River ...

New research suggests Earth’s first complex life stayed close to the seafloor and depended on oxygen to survive.