Mars Day at the Smithsonian Air and Space Museum in Washington is a celebration of our solar system's most famous planet.

VOA: special.2010.07.28

Scientists believe it is evidence that a large object struck Jupiter, cutting a hole in the atmosphere of the huge, gaseous planet.

VOA: special.2009.08.25

The movie tells the story of humans meeting tall blue creatures called Na'vi on a planet called Pandora.

VOA: special.2010.03.01

The Web site, a book and a series of art projects around the world will bring attention to the disappearing biodiversity on our planet.

VOA: special.2010.04.21

On March thirteenth, Clyde Tombaugh and V.M Slipher announced the discovery of a new planet.

VOA: special.2010.07.11

Instead,these experts say, our planet is experiencing a normal series of temperature changes.

VOA: special.2010.01.19

And that legacy lives on, among plant breeders world wide on the front lines of the fight to nourish a hungry planet.

VOA: standard.2009.09.16

The report,Promoting Development, Saving the Planet,said that up to $1 trillion a year would be needed to deal with issues of climate change in the future.

VOA: standard.2009.09.01

"The important achievement of Apollo was a demonstration that humanity is not forever chained to this planet, and our visions go rather further than that and our opportunities are unlimited,".

VOA: standard.2009.07.16

Writer-director Cameron also acknowledges that what the humans try to do on the fictional Pandora is a clear metaphor for what he believes are the dangers of exploitation on our own planet;

VOA: standard.2009.12.19

"That is including Iraq, Afghanistan,etc. So,the scale of violations that have been committed there and the scale of active killing and death due to a lack of humanitarian service, access to health,etc., exceeds any other catastrophe on the Planet."

VOA: standard.2009.09.12