From its 1970 origins to today’s climate action, here’s why Earth Day is observed each April 22 and what the day represents.

Millions of people around the world will pause Wednesday, at least for a moment, to mark Earth Day. It's an annual event ...

Fresh takes on Apollo’s famous “Earthrise” and “Blue Marble” images showed off our planet’s beauty just weeks before Earth ...

Here's what to know about Earth Day 2026 and how the holiday came to be.

See stunning photos of Earth taken from space by astronauts and robotic spacecraft, celebrating our home planet on Earth Day.

Apophis, a massive near-Earth asteroid, is set to pass just 20,000 miles from Earth on April 13, 2029. The flyby, described ...

Earth Day often inspires communities to come together through volunteer work, and 2026 won't be much different.

Earth Day 2026: History of the global movement fighting for our planet - Millions of people around the world will pause on ...

Bork!Bork!Bork!: Dynamic Earth's ancient rock holds not primordial crystal, but a tiny Linux box having a bad day ...

Fifty-six years after the first one rallied 20 million people across America, “we need to do things that make us feel more ...

Deep within Earth’s core, scientists are uncovering signs of a hidden structure that challenges long-standing models of the planet’s interior.

India, April 22 -- Earth Day 2026 is once again set to bring millions together across the globe in a unified call for ...