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Earth, Mars and Venus all looked pretty similar when they first formed. Today, Mars is dry, cold, and dusty; Venus has a hot, crushing atmosphere. Why did these sibling planets turn out so different?
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Every spring, a remarkable sight unfolds in the San Gabriel Mountains north of Los Angeles, as thousands of songbirds fly north.
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A father and daughter discovered fossil remnants of a giant ichthyosaur that scientists say may have been the largest-known marine reptile to ever swim the seas.
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What's a typical vacation activity for doctors? Work. A new study finds that most physicians do work on a typical day off. In this essay, a family doctor considers why that is and why it matters.
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Weliton Menário Costa's award-winning music video showcases his research on kangaroo personality and behavior — and offers a celebration of human diversity, too.
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When marijuana becomes a Schedule III instead of a Schedule I substance under federal rules, researchers will face fewer barriers to studying it. But there will still be some roadblocks for science.
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Michael Sanchez was testing out his new camera when he happened upon a feathered subject. The blue rock-thrush he photographed on the coast of northern Oregon last week has excited the birding world.
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Federal health officials say the U.S. has the building blocks to make a vaccine to protect humans from bird flu, if needed. But experts warn we're nowhere near prepared for another pandemic.
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NPR's Juana Summers talks with Regina Barber and Emily Kwong of Short Wave about biodegradable plastic, simulating growing crops on Mars, and how deer are disrupting caribou populations.
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The health officials say the country is ready to produce a vaccine against a worrisome flu virus that recently jumped from birds to cows and at least one person. But some experts are skeptical.
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Women under 60 can benefit from hormone therapy to treat hot flashes and other symptoms of menopause. That's according to a new study, and is a departure from what women were told in the past.
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The time a person has to decide whether to have an abortion in Florida and other states with six-week abortion bans is at most two weeks. Why? It's has to do with how we date early pregnancy.