In April 2029, a 20-million ton asteroid once thought to pose a potentially catastrophic collision risk with the Earth will fly by our home. Apophis, named for the Egyptian god of chaos and evil and ...

Billions of years ago, Earth was an uninhabitable rock covered in magma. Scientists are still working to decipher the tale of how it transformed into a blue and green orb teeming with life. However, ...

A new interactive visual depicts everything on the planet Earth, showing, with scientific precision and breathtaking profundity, how man-made things now outweigh all forms of natural life. Created by ...

Happy Earth Day! For the 55th year, the world is using the day to celebrate Mother Nature and the wonderful planet we live on. "Earth Day really is a symbol of the environmental movement," Sarah ...

I remember working on my first Earth Day project as a kid in elementary school in Massachusetts, constructing two huge, makeshift Styrofoam spheres showing what our planet looked like at that time and ...

The updated version of the World Magnetic Model was released on Dec. 17, with a new prediction of how the magnetic north pole will shift over the next five years. Here's why it was changed. When you ...