A giant sequoia located in Sequoia National Park in California, the General Sherman is 52,500 feet in volume and is more than 2,000 years old. The General Sherman giant sequoia is the largest known ...

JACKIE. YEAH. GOOD AFTERNOON. IT’S A REALLY NICE DAY OUT HERE. OF COURSE, WE’VE GOT THE SUN SHINING ON THIS EARTH DAY. A LITTLE BREEZY, SO MY HAIR HAS BEEN KIND OF GOING HERE. THERE AND EVERYWHERE. A ...

A college student in a gas mask "smells" a magnolia blossom during the first Earth Day on April 22, 1970 in New York City. Credit - AP More than 8 billion people inhabit Earth, and soon a springtime ...

This year marks the 55th anniversary of Earth Day! Every year on April 22, people worldwide mobilize to address some of the most urgent threats facing our environment, from climate change to ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Deep inside Earth ...

Earth Day is one of the most popular and widespread non-religious holidays in the world, recognized in over 100 nations across continents. Although the event was primarily based in the United States, ...

Venus was the goddess of beauty in ancient Rome and her brightly shining planetary namesake lives up to that hype. When Venus is in the evening sky, you notice her. When she is in the predawn sky, you ...

You might know that Saturday, Apr. 22 is Earth Day, but where did it come from and why do we celebrate? Here are some interesting facts about this worldwide celebration that’s been going on for more ...