Remnants of a liquid layer of magma near Earth's core, formed in the first few hundred million years of the planet's history, ...

During a brief but dramatic chapter in Earth's history about 41,000 years ago, the planet’s magnetic field nearly collapsed.

Deaths of nearby massive stars may have played a significant role in triggering at least two mass extinction events in ...

Earth's oceans could one day turn purple. Nearly three fourths of Earth is covered by oceans, making the planet look like a ...

Earth's tectonic history is what it is because of our planet's material composition. It's not like this on all planets, nor even all the rocky planets in our own solar system. However, the garnet ...

After that, the current ancestors of all living beings appeared: single-celled microbes. For the first 80% of life's history, ...

Sometimes the “whys” of history are lost, and that holds true to why Capt. John Cleves Symmes Jr. wholeheartedly believed the ...

New research suggests that Earth's first crust, formed over 4.5 billion years ago, already carried the chemical traits we ...

But the career of the Earth recedes into a remoteness against which these lesses cycles are as unavailing for the measurement of that abyss of time as would be for human history the beating of an ...

Earth Day has been celebrated across the country for more than 50 years now, and the annual celebration is once again around the corner.

Asteroids of this size regularly pass through the Earth's neighborhood, often unnoticed, unless they are actively tracked by NASA and other space agencies. The continuous monitoring of near-Earth ...

Continental clues: Modern continental rocks carry chemical signatures from the very start of our planet’s history, challenging current theories about plate tectonics. Researchers have made a new ...