Earth Day has always been a day that acknowledges our planet, which provides for us, and ways we can protect and preserve its ...

Happy Earth Day! For the 55th year, the world is using the day to celebrate Mother Nature and the wonderful planet we live on. "Earth Day really is a symbol of the environmental movement," Sarah ...

Scientists have found new but tentative evidence that a faraway world orbiting another star may be home to life. A Cambridge ...

Happy Earth Day! For the 55th year, the world is using the day to celebrate Mother Nature and the wonderful planet we live on. "Earth Day really is a symbol of the environmental movement," Sarah ...