When humans visit Mars later this century, they will alight on its ochre-hued sands with the same spirit of adventure and thirst for opportunity as a young girl whose essay was selected from among 10,000 online submissions to name a pair of Mars-trekking rovers. In 2002, nine-year-old Sofi Collis, then living in Scottsdale, Arizona, enteredContinue reading “20 years ago: Spirit and Opportunity rovers launched for Mars”
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