Fifty-six years after the first one rallied 20 million people across America, “we need to do things that make us feel more ...

Earth Day is celebrated across the country, and the globe, through the mobilization for environmental causes. While it may ...

Add Yahoo as a preferred source to see more of our stories on Google. Jaxon Mercer, Rachel Starr and Alonso Prieto plant a tree as they join with Salt Lake City Department of Public Lands and other ...

The history of Earth is written on the great tablets of tectonic plates. The motions of plates shaped land masses, formed oceans, and created the varied climates and habitats that set the stage for ...

Earth Day is an annual celebration that raises awareness of the need to protect Earth's natural resources for future generations. But just how did Earth Day come to be and what are some simple steps ...

When geologist John Wesley Powell explored the Grand Canyon in 1869, he noticed a glaring omission in the rocks. A layer of rock just 520 million years old sat directly on top of ancient rock dating ...

Millions of people around the world will pause on Tuesday, at least for a moment, to mark Earth Day. It's an annual event founded by people who hoped to stir activism to clean up and preserve a planet ...

Earth Day has been celebrated across the country — and the globe — for more than 50 years now, and the annual celebration is once again around the corner. While it may seem strange to think of a world ...

Tiny bits of Earth’s atmosphere have been drifting to the moon for billions of years, guided by Earth’s magnetic field. Rather than blocking particles, the magnetic field can funnel them along ...

About 4.5 billion years ago, the most momentous event in the history of Earth occurred: a huge celestial body called Theia collided with the young Earth. How the collision unfolded and what exactly ...

In the whole history of Earth's climate, few events are as extreme as those that geologists call "Snowball Earth." "These are times when geologic evidence indicates Earth froze over, essentially from ...