Word: marse
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Dates: during 2000-2009
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But then again, there aren't a lot of things like NASA's Spirit and Opportunity Mars rovers, the robotic ships that landed on the Red Planet five years ago this month with an expected lifespan of 90 days and yet have chugged along ever since - surviving paralyzing cold, blinding...
The dune buggy-size Spirit and Opportunity are the third in NASA's family of Mars rovers, descendants of the 2-ft.-long Sojourner craft, which arrived on Mars in the summer of 1997. Like its bigger siblings, Sojourner came with only a very brief factory warranty - just 30 days...
The two rovers were launched atop separate boosters. Spirit left Earth on June 10, 2003, and Opportunity followed on July 7, taking advantage of the biannual close approach Mars and Earth make as they orbit the sun. On solar system scales, a close approach is still a goodly distance - 35...
The two spots were chosen for a very good reason. Despite the caps of ice in Mars' polar regions and the deposits of ice thought to lie beneath the soil, the planet is a desiccated place. But that doesn't mean Mars wasn't once wet, and its topography - scarred...
Without the unerring measurement provided by atomic clocks, we couldn't have landed a rover on Mars, the Internet wouldn't be able to process data superfast and GPS navigation would be a fantasy. These clocks are so precise that they literally redefined time: Once tied to the mean solar...