Sometimes, in a world full of irrational thought and credulity, a skeptic can feel overwhelmed–alone in a storm of mysticism and pseudoscience. Like Luke Skywalker collapsed in a whiteout, I find myself wishing for a blue-Jedi apparition of Carl Sagan, the Obi-wan Kenobi of skepticism!

Luke, you’ll find many of the truths we cling to depend greatly on our own point of view.

Of course, we all know that wizard was just a crazy old man and Sagan didn’t need ‘hokey religions’ or ‘mystical energy fields’ (as Capt. Solo would say). But I think Sagan’s talent for writing and speaking is the closest thing you can get to a real Jedi mind trick–a magic-like ability to get people to see reason.

To celebrate the popularization of science and skepticism, I’ve created the Jedi Master Sagan wallpaper. Check out my blog, There Are Four Lights, to download it for your desktop, iPhone, or iPad. Help spread the geekdom by voting on Digg, Reddit, and using the other social sharing buttons available.