Uttar Pradesh's Salkhan Fossil Park, boasting 1.4 billion-year-old stromatolites, has been added to UNESCO's Tentative List.

Earth's circumference is 24,901 miles (40,075 km), making it the largest rocky planet in the solar system. Our planet orbits 93 million miles (150,000 km) away from the sun.

Learn about the Earth with these 5 incredible facts about our planet, including the temperature of the Earth's core and Pangea.

Discover interesting facts about how big earthquakes can get, why earthquakes happen, and why they're so hard to predict.

The Mariana Trench, home to the Challenger Deep, is an alluring yet dangerous place to visit. Here’s what to know about the deepest point on Earth.

Quick facts about whales. Where they live: In oceans around the world What they eat: A huge range of animals, from tiny plankton to giant squid How big they are: Between 7 and 100 feet (2 to 30 ...

Earth Day was founded in 1970 and has only gotten bigger since then. Here are five facts about the history of Earth Day to better appreciate the activism that brought it to life.