Even the balmy tropics may have once been crushed by colossal masses of ice.

Emerging evidence suggests that plate tectonics, or the recycling of Earth's crust, may have begun much earlier than ...

Scientists have calculated the Earth to be 4.54 billion years old, with an uncertainty of 50 million years on either side.

While hydrogen is indeed the most abundant element in the universe, the story is quite different on Earth. Here, gravity and ...

Stable parts of the Earth's crust may not be as immovable as previously thought. While much of the crust is affected by plate tectonic activity, certain more stable portions have remained ...

An unexpected find in tiny crystals hints that the Earth's mantle may not quite behave as has been believed for nearly a century.

Scientists observed that all examined craters are situated within 30 degrees of the equator. This concentrated impact area, ...

China's Chang'e-6 robotic spacecraft in June made history by retrieving the first surface samples from the far side of the ...