Science

WASHINGTON (Reuters) – A partial jawbone bearing seven teeth unearthed in a cave in Israel represents what scientists are calling the oldest-known Homo sapiens remains outside Africa, showing that our species trekked out of that continent far earlier than previously known. Researchers on Thursday announced the discovery of the fossil estimated as 177,000 to 194,000
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WASHINGTON (Reuters) – An analysis of fossils including the oldest-known Homo sapiens specimen has revealed that brain shape in our species evolved over time to become less elongated and more globular, a change that appears to have accommodated key advances in its function. Scientists said on Wednesday they examined brain size and shape based on
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LONDON (Reuters) – Chinese scientists have cloned monkeys using the same technique that produced Dolly the sheep two decades ago, breaking a technical barrier that could open the door to copying humans. Zhong Zhong and Hua Hua, two identical long-tailed macaques, were born eight and six weeks ago, making them the first primates — the
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TOKYO (Reuters) – Japan chastised a Kyoto University stem cell research team led by Nobel laureate Shinya Yamanaka on Tuesday after a team member fabricated data in his paper, saying it shook people’s trust in scientific research. Education Minister Yoshimasa Hayashi’s comments came a day after Kyoto University announced that a researcher at Yamanaka’s research
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WASHINGTON (Reuters) – Initial tests in Nevada on a compact nuclear power system designed to sustain a long-duration NASA human mission on the inhospitable surface of Mars have been successful and a full-power run is scheduled for March, officials said on Thursday. Officials from the National Aeronautics and Space Administration and U.S. Department of Energy,
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WASHINGTON (Reuters) – There’s not a pot of gold at the end of the rainbow. There’s an iridescent dinosaur. Scientists on Monday announced the discovery of a crow-sized, bird-like dinosaur with colorful feathers from northeastern China that lived 161 million years ago during the Jurassic Period. They named it Caihong, the Mandarin word for rainbow.
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WASHINGTON (Reuters) – In sandstone next to the high tide mark at the edge of Bass Strait in southeastern Australia, scientists have unearthed fossils of a two-legged, turkey-sized, plant-eating dinosaur apparently swept away in a large, powerful ancient river. Paleontologists on Thursday said the partial skeleton of the previously unknown beastie, named Diluvicursor pickeringi, that
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TOKYO (Reuters) – Japanese astronaut Norishige Kanai, on a mission to the International Space Station, apologized on Wednesday for saying he had grown 9 cm (3.5 inches) while in space and expressing concern about whether he’d be safe on his return to Earth. Most astronauts “grow” during protracted space missions because their spines extend in
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WASHINGTON (Reuters) – It was too good to be true. Scientists have ruled out the most exotic explanation — an orbiting alien mega-structure — for the behavior of a celestial oddity dubbed Tabby’s Star that has been puzzling scientists with its sporadic dimming and brightening. Astronomers said on Wednesday that the most thorough study to
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