A new claim for the oldest microfossils on Earth suggests that life may have originated in hydrothermal vents, but some scientists have doubts.
Researchers are designing catalysts to move chemical reactions without using precious metals, or at least using less of them.
A supermassive black hole about 1.8 billion light-years away has been gorging on the same star for a record-breaking decade.
Geologists make the case for a new continent, dubbed Zealandia, found largely submerged beneath the southwestern Pacific Ocean.
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Differing activity of human and Neandertal versions of genes may help explain health risks.
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New biographies highlight Enrico Fermi’s and Richard Garwin’s contributions to science and society.
The 1987 explosion of a star near the Milky Way 30 years ago set off years of fascinating findings.
A planetary system called TRAPPIST-1 has seven Earth-sized planets, three in the habitable zone, researchers report.
For men with low testosterone, the pros and cons of taking hormone replacement therapy are mixed.
Stinkbugs can ruin wine if enough are accidentally processed alive with the grapes. Three or fewer stinkbugs per grape cluster don’t have a noticeable effect on red wine.
DNA points to a 330-year-long reign of a maternal dynasty centered in New Mexico’s Chaco Canyon.
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Dye-free imaging technique zooms in below 10-nanometer threshold, allowing new cellular views.
Microbes trapped in crystals in Mexico's Naica mine may represent some of the most distinct life-forms found in Earth so far.
NASA is working on a possible lander mission in which the main science goal would be to search for signs of life on Jupiter’s moon Europa.
NASA’s Dawn spacecraft has detected organic matter — the building blocks of life — on the dwarf planet Ceres, a new study suggests.