News
- Astronomy
A comet’s odd orbit hints at hidden planet
Far beyond the solar system's nine known planets, a body as massive as Mars may once have been part of our planetary system, and it might still be there.
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Fungi slay insects and feed host plants
Researchers are discovering that some plants get their nutrients by robbing nitrogen from the flesh of soil-dwelling insects.
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RNA world gets support as prelife scenario
Scientists tinkering with a chemical now vital to life think they've recreated one of the central molecules that gave rise to the chemistry of life.
- Anthropology
Early Brazilians Unveil African Look
Prehistoric human skulls found in Brazil share some traits with modern Africans, leading a Brazilian scientist to theorize that Africans rather than Asians first arrived in the Americas sometime before 11,000 years ago.
