A new three-dimensional model suggests parts of early Earth became continuously cool enough for prebiotic chemistry after about 4. 4 billion years ago, ending repeated thermal resets from major ...

Earth is fortunate in having a magnetic field: it protects the planet and its life from harmful cosmic radiation. Other planets in our solar system—such as Mars—are constantly bombarded by charged ...

We like to think of our home as a nice, smooth sphere. But mapping the Earth’s gravitational field provides a different view of the planet. a new visualization of Earth looks nothing like the Blue ...

The story of the Earth and its moon has traditionally started with the “big whack,” a collision between proto-Earth and a Mars-sized planet about 4.5 billion years ago that nearly vaporized them both ...

Earth supports a breathtaking range of geographies, ecosystems and environments, each of which harbors an equally impressive array of weather patterns and events. Climate is an aggregate of all these ...

The key to unlocking the secrets of distant planets starts right here on Earth. Researchers at Tohoku University, the University of Tokyo, and Hokkaido University have developed a model that considers ...

This hands-on, guided-inquiry activity helps students to understand the geometry of lunar and solar eclipses by creating a physical, proportional model of the Earth and Moon system and observing ...