As reported in today's headlines, the Mars Rover, Opportunity recently celebrated it's first anniversary on the Red Planet. For a mission originally planned for 90 days, both rovers are showing a wonderfully long life. Congratulations to NASA.

• Read more about Opportunity's launch.
  
• Relive when Opportunity first rolled onto the Martian surface.
  
• See some of the early Martian images from Opportunity.
  
• Forum Post of the Day:
  
  Subject: alh84001 around the world
  "what governments around the world believe that there is fossil life in ALH 84001?"
  fhnvwguyqigy
  ^{Note: ALH 84001 is a meteorite thought to have originated on Mars.}
• So, what if a meteorite much much larger than ALH 84001 were to hit Earth? Check out these Top Nonfiction Asteroid/Comet Impact Books.

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• * Spotlight: Since its launch in 1997, the Space Day educational initiative, which takes place on the first Thursday of each May, has evolved into a massive grassroots effort dedicated to the extraordinary achievements, benefits and opportunities in the exploration and use of space. Discover this and other great astronomy & space features in our Essentials.