Discover how scientists have used iron isotopes to determine the likely origin of the Mars-sized planet named Theia.

Learn how several working groups with their own carving techniques built the iconic moai of Easter Island.

Will the pole shift actually happen? Discover more about Earth’s magnetic poles and how they’ve shifted in the past.

Learn more about loggerhead turtles’ ability to feel the magnetic field throughout their migrations — an ability that they’ve ...

Is a sun a star or a planet? While science now agrees the sun is a star, new telescopes may soon challenge how we define solar objects.

Learn about the recent eruption of Hayli Gubbi, a volcano in Ethiopia that was previously dormant for nearly 12,000 years.

Learn how faults beneath the Earth's surface can heal themselves after slowly releasing stress from the movement of tectonic plates.

Deep within Earth’s mantle, scientists have uncovered surprising evidence that traces of the planet’s early form,proto-Earth, ...

Learn what caused a major population crash in the Maya civilization, driving several cities to fall into ruin.

Learn how dolphins have fun by blowing bubble rings underwater, using clever tricks to play games.