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 ...

Every spring, my neighbors gather in a local park for a community clean-up day. It’s a gentle nudge to emerge from our winter hibernation, breathe fresh air and connect with each other. Together, ...

Did you know that our planet is rocketing around the sun at 67,000 mph? Or that it once had two moons? Here are some amazing facts about Earth.

More than 8 billion people inhabit our planet, and each year Earth Day reminds them of the need to take care of their home. The springtime holiday, which takes place today—April 22—dates back to 1970, ...

Ah, Earth. We may not think about our planet on a day-to-day basis, but the world we live in is a pretty interesting place. The third rock from the Sun—and to this day, the only one with known ...