Earth Day is celebrated around the world every year on April 22 to promote conservation, reduce pollution and a reminder of the importance of protecting the planet for future generations. This year's event comes just days after the end of NASA's Artemis II mission,

This Earth Day, we reflect on our home planet and look at Earth from space through history.

The realizations on social media align with what researchers have long known about Earth's composition.

LONDON — From jungles to deserts to mountains, the BBC's epic nature series "Planet Earth II" takes viewers around the world — and around many genres of television. The fortitude of a penguin family tugs heartstrings like a love story. The snail's-pace ...

From a precise splashdown to a 694,000-mile journey, here's how Artemis II showed NASA's Moon-to-Mars plan is taking shape.