2,300 Years of Yellowstone’s Grazing Giants Uncovered in Lake Sediments
Chemicals from buried dung in lake sediments indicate their presence and reveal their ecological impacts. A recent analysis of chemicals preserved in lake sediments reveals that large herbivores, such ...
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NASA's 15-year-old NEOWISE asteroid hunter meets fiery doom by burning up in Earth's atmosphere
NASA's venerable asteroid-hunting spacecraft is no more. The NEOWISE spacecraft from NASA, which surveyed 3,000 near-Earth ...