Research on hidden structures deep within Earth’s mantle challenges theories about our planet’s middle layer and could ...
The Earth's interior is composed of four layers, three solid and one liquid—not magma but molten metal, nearly as hot as the surface of the sun. The deepest layer is a solid iron ball ...
A groundbreaking new study of microbes underground is challenging everything we thought we knew about extreme environments.
After analyzing "super-continent" structures deep inside the Earth, scientists believe they could be up to billions of years ...
An asteroid that orbited near Earth for a few months as a mini-moon may be a chunk of the moon that was blasted off by an impact thousands of years ago.
A look at the evidence for the Earth being round or spherical. Aristotle’s reasoning is explained. The evidence includes a ship’s hull disappearing first over the horizon, the stars ...
To arrive at this estimate, they can use rocks from Earth. As large planetesimals grow, heat is released by repeated impacts and the radioactive decay of elements inside their minerals—enough to cause ...
A look at the evidence for the Earth being round or spherical. Aristotle’s reasoning is explained. The evidence includes a ship’s hull disappearing first over the horizon, the stars ...
Like most of us, Earth has a lot going on under the surface ... out details about the zones’ composition and activity. They looked at the attenuation, or intensity, of seismic signals ...