The Grand Canyon, one of the most iconic geological formations on Earth, may hold deeper secrets about our planet’s history ...

Over 20,000 years ago, during the last glacial maximum, the Earth was a frozen world. Global temperatures were around 10°C colder, and vast ice sheets covered large portions of the ...

This eerie satellite photo shows a "devilish" Russian volcano spewing out a 1,000-mile-long river of smoke into Earth's atmosphere. It is a striking reminder of the volcanic power trapped within ...

Mercury has no moons, and neither does Venus. Mars does have two moons, but they're really just captured asteroids. Earth is the only rocky planet in the solar system with a significant moon.

The timescales of Earth's natural processes are important to keep in mind. Over thousands, millions and billions of years, processes such as plate tectonics, erosion, and atmospheric cycles will ...

Giant river otters, or Pteronura brasiliensis, are the world’s largest otters, reaching almost 6 feet long and weighing up to 72 pounds, Rewilding Argentina said in a news release.

The Waukegan River and Ravine Cleanup, fueled by the church’s 53 volunteers Saturday at three different parks with access to the river through the ravine in Waukegan, prompted city officials to ...