• "This valley of history has seen mankind complete its first evolutionary steps into the universe: leaving the planet Earth and going forward into the universe.

    VOA: special.2010.04.28

  • Also left forever on the moon is a sign with these words: "Here men from the planet Earth first set foot on the Moon July,nineteen sixty-nine A.D.

    VOA: special.2009.07.15

  • A new report says mangrove forests store more planet-warming carbon dioxide than almost any other ecosystem on Earth.

    VOA: special.2011.05.10

  • Water exists on Earth and the planet Mars.

    VOA: special.2009.09.30

  • He called the planet "Spaceship Earth."

    VOA: special.2010.05.30

  • On the the 40th anniversary of Earth Day, this warming planet we live on is posing serious new challenges to human civilization: increasingly severe droughts, floods,and storms across the globe, and slowly rising ocean levels.

    VOA: standard.2010.04.21

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