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A photo of earth from 1 billion miles away, what the Curiosity Rover has discovered after a year on Mars, and a spacecraft that may now be traveling beyond the solar system. Astrophysicist Chris Lintott joins us to explore some of the latest and most amazing stories from outer space. View a slideshow and vote on your favorite photo in the Astronomy Photographer of the Year 2013 Contest.

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It's one of NASA's most daring undertakings. The Curiosity rover is set to land on Mars on August 6, and the lead scientist of NASA's Mars Exploration Program is here to tell us about the mission, including the so-called "seven minutes of terror."