We Could Seed Alien Life Elsewhere in the Universe—But We’ll Never Undo the Devastating Consequences

Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks are enormous.
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A submarine reached Earth’s deepest point - then something moved in the mud

The Mariana Trench drops nearly 36,000 feet beneath the Pacific, deep enough to swallow Mount Everest with more than 1 mile of water still above it. In 1960, Don Walsh and Jacques Piccard reached the ...