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Take a journey through space. Visit the planets, moons, asteroids, and comets that wander our planetary neighborhood and learn about the spacecraft that send us information and images about our solar system. Then, look beyond — explore newly-discovered planets orbiting other stars and search for life beyond Earth. Society Projects
Recent Additions
Mars Science Laboratory
On December 4, 2008, NASA announced that the launch of MSL, which had previously been scheduled for October 2009, will not take place until late in 2011. Visit The Planetary Society Blog for more information on the delay. Twice as long and four times as heavy as the Mars Exploration Rovers, Mars... 
Phoenix
Did you send your name to Mars on Phoenix? You can still find and print your participation certificate. Phoenix landed on Mars at 23:38 UTC (16:38 PDT) on May 25, 2008. Its mission was short, limited by the availability of sunlight at its extreme northern landing site. The last transmission... 
Weekly Planetary Radio Trivia Contest
Each Monday, Planetary Radio asks listeners a question. Listeners must send in their answers to planetaryradio@planetary.org by the following Monday. The winner will be chosen by a random drawing from among all the correct entries received. This week's prize is a Planetary Radio T-Shirt! Listen... 
Dawn
Dawn Journals: Dawn Project System Engineer Marc Rayman is contributing updates on the status of Dawn to The Planetary Society Weblog! Nov. 26, 2008: Aiming away from a bull's eye at Mars/a> Oct. 30, 2008: A pause in thrusting Sep. 27, 2008: One year since launch Aug. 28, 2008: Some explanations... Space TopicsLearn about space by exploring these and many more topics! Contests, Events, and Awards
Extrasolar PlanetsHow It WorksNear Earth ObjectsOur Solar SystemSearch for LifeSpace Missions
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