See stunning photos of Earth taken from space by astronauts and robotic spacecraft, celebrating our home planet on Earth Day.
Add Yahoo as a preferred source to see more of our stories on Google. The views of Earth from the far stretches of space are some of the most incredible sights. From capturing weather patterns and the ...
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NASA is stress-testing Mars tech in Earth's harshest deserts — and the results are wild
NASA is taking its newest Mars exploration technologies out of the lab and into Earth's most brutal deserts, pushing drones, walking robots and experimental flyers through scorching heat, shifting ...
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