Space
Phoenix Mars lander bakes third soil sample
A third soil sample is being analysed by an onboard instrument called TEGA; meanwhile, the lander has dug its deepest trench yet
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A third soil sample is being analysed by an onboard instrument called TEGA; meanwhile, the lander has dug its deepest trench yet
For more than 30 years, researchers have been cooking up mock Martian soil – but no single material can simulate all its properties