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A star that appeared and then vanished in A.D. 1437 was an explosion in a binary star system—which now reveals clues about the life cycle of certain stars. Christopher Intagliata reports.
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When cattle graze the desert's natural landscape, birds face changes in food availability—and some species are unable to adapt. Jason Goldman reports.
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Warmer water boosts fishes' demand for oxygen—and their bodies may shrink in response. Christopher Intagliata reports.
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In 1998 an orange juice maker dumped 12,000 tons of orange peels on degraded pastureland in Costa Rica—transforming it into vine-rich jungle. Christopher Intagliata reports.
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Astronomers Without Borders wants to share your used eclipse glasses with kids in other parts of the world for the 2019 total solar eclipse.
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