- Marc Kaufman
- Reporter
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- NASA Mars mission to test planet for ability to sustain life
- Researchers shed light on source of Earth’s water
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- Atlantis landing completes space shuttle era
- Saturn’s moon Enceladus shows evidence of an ocean beneath its surface
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- Predator fish in oceans on alarming decline, experts say
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- SpaceX puts Dragon 9 space capsule on display in D.C.
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- New research points to earlier human migration out of Africa, 125,000 years ago
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