Ray Bradbury, the celebrated science fiction author, has taken millions of people on imaginative journeys to Mars through his work for over half a century. Now Mars is coming to Bradbury, so to speak, when the planet draws closer to Earth than it has been in over 50,000 years. To celebrate the opposition of Mars on August 27 and Bradbury’s 83rd birthday on August 22, The Planetary Society is gathering birthday greetings from well-wishers around the world to present to Bradbury in a giant birthday card. Anyone can join in sending these greetings by visiting The Planetary Society