Book Reviews
![]() 2004: The year in space and astronomy: "Nearby Mars grabbed the most dramatic headlines. After landing on opposite sides of the planet in January, NASA's rovers Spirit and Opportunity each turned up evidence that water had altered the planet's surface in the past. [...] In 2004, several space missions were launched, including a mission to Mercury and one to study the universe's most powerful explosions. That suggests 2005 will be another spectacular year for the field."
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