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In “War of the Whales,” Joshua Horwitz describes fatal encounters between whales and sonar.
As it moves toward Mount Sharp — Mars’s “promised land” — Curiosity overcomes technical problems.
A human voyage to the planet is now, for the first time, within the realm of possibility, according to space advocates inside and outside government.
The landing of the Curiosity rover has given new impetus to the idea of human flight to Mars.
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Advice columnist Carolyn Hax took reader questions.
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