Poster Credit: Thishan Pavithra (Download the poster here ) Mars will come into Opposition on March 3, 2012 in the constellation Leo with its face fully illuminated by the Sun and two days later, on March 5, 2012, the planet will have its closest approach to Earth during this apparition: 100.78 million km (0.6737 AU)—the best time to say "Hello" to the Red Planet. Mars Oppositions occur when planet Earth, on its smaller orbit inside that of Mars, passes exactly between the Sun and the Red Planet. Because of the different sizes of the two orbits, this occurs about every...
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