Earth is our home planet, and it's the only place in the universe where we know for certain that life exists. Earth formed over 4.5 billion years ago from a swirling cloud of gas and dust squished ...

This year's theme, "Planet vs. Plastic," offers a multitude of creative possibilities. Here are some ideas to get your artistic juices flowing: Draw a divided Earth: On one side, a vibrant ...

Strange Days on Planet Earth is a multi-year landmark undertaking ... and the larger the body of water, the greater the draw. Nearly half the planet’s population now lives within a mere 75 ...

A distinctive blue and green image of Earth reveals our planet's most remarkable features. At 4.54 billion years old, our home world is a venerable object. But it was only with the arrival of the ...