A giant sequoia located in Sequoia National Park in California, the General Sherman is 52,500 feet in volume and is more than ...

Discover interesting facts about Saturn, its rings and whether it could contain extraterrestrial life.

Earth is the only planet in the known universe that has the right combination of water, atmosphere, temperature, and chemical ...

Earth Day is on Tuesday, April 22, this year. The annual observation is set aside to increase awareness around environmental ...

Earth Day has always been a day that acknowledges our planet, which provides for us, and ways we can protect and preserve its ...

To mark Earth Day, NBC’s Brian Cheung joins TODAY to break down numbers and facts about the blue planet, including how it got its name and how many miles food may travel to get to your plate.

Sound as we know it does not exist in space. That’s because, on Earth, sound mainly travels to our ears via vibrating air molecules. Because space is a vacuum, meaning there is no matter at all ...