- December 24, 2007 - Mars Opposition for Christmas
- Guide to observing the 2007 Mars opposition on Christmas Eve. - International MarsWatch
- Network of professional and amateur astronomers observing Mars. Provides information about the 2007 observing season, as well as information about robotic missions to Mars. - Mars 2007
- Mars is closest to Earth on December 18, 2007, and reaches opposition on December 24th, 2007. Find news articles, images, and sketches capturing the Red Planet's close approach. - Mars Observing FAQ and Links: 2007 Opposition
- Describes the 2007 opposition of Mars that occurs on Christmas Eve. Also includes a Mars observing FAQ. - Mars: Closest Approach 2007
- See a new Martian movie showing the planet rotating, created by Hubble images taken within 36 hours of Mars' closest approach to Earth on December 19, 2007. - Observe Mars Tonight!
- Sky & Telescope's guide to observing Mars in December 2007-January 2008, when the Red Planet will make its closest approach to Earth since 2005. - See Mars Now: Red Planet Shines Bright
- SPACE.com article about how Mars will be closer to Earth in December 2007 than any time until the year 2016. Find directions and sky charts for finding the Red Planet in the night sky.
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