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Fossil shark scales provide a glimpse of reef predator populations before human impact Spikey, ridged scales reduce drag in swift-swimming sharks, while thicker, rounder scales offer protection from abrasion. The three-pronged scale on top may serve a defensive function. False color electron microscope images of denticles (not to scale); ...
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How Scientists Are So Confident They Know What's Causing This Insane Weather Last year, in his jargon-heavy paper "Can the Issuance of Hazardous-Weather Warnings Inform the Attribution of Extreme Events to Climate Change?" Durran closely examined something called the "probability of detection" and the "false alarm ratio.".
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Mystery Deepens as New Study Indicate that Underground Lakes on South Pole of Mars May Not be Real The bright white region of this image shows the icy cap that covers Mars south pole, composed of frozen water and frozen carbon dioxide. (ESA/DLR/FU Berlin/Bill Dunford).
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WATCH: NASA's Self-Driving Perseverance Mars Rover 'Takes the Wheel' ABOVE VIDEO: Perseverance relies on left and right navigation cameras. The view seen here combines the perspective of two cameras rover during the rover's first drive using AutoNav, it's auto-navigation function. (NASA) – NASA's newest six-wheeled robot ...
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Ancient bone carving could change the way we think about Neanderthals Archaeologists determined the artifact to be at least 51,000 years old—before the arrival of Homo Sapiens in central Europe. The design may be simple, but a chevron pattern etched onto a deer bone more than 50,000 years ago suggests that Neanderthals ...
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UAE's Hope Probe Captures Most Detailed Pictures of Discrete Aurora on Mars The United Arab Emirates (UAE) Hope Mars Mission has snapped the most detailed pictures yet of the 'discrete nightside auroras' of the Red Planet, which scientists have struggled to study for decades. The ultraviolet emissions arise when solar wind runs ...
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NASA names women to leadership roles at Johnson and Kennedy Centers HOUSTON, Texas -- NASA Administrator Bill Nelson has named Vanessa Wyche director of the agency's Johnson Space Center in Houston and Janet Petro director of Kennedy Space Center in Florida. Wyche has served as the acting director of Johnson ...
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Seal photographs being used in Orkney bid to stop decline John Dickens, from the Sea Mammal Research Unit at the University of St Andrews, told BBC Radio Orkney: "We've seen enormous declines in the number of harbour seals, which are also known as common seals, on the east and north coasts of Scotland, and ...
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NASA & SPACE NEWS: Weather Pushes SpaceX Cargo Dragon Undocking to No Earlier Than July 7 BREVARD COUNTY, FLORIDA – Due to forecasted extreme weather off the coast of Florida, SpaceX CRS-22 undocking is now planned for no earlier than July 7. Coverage will begin at 10:45 am EDT. NASA and SpaceX flight control teams continue to ...
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It's Aphelion Day: Earth moves farthest from the sun today in 2021 It's the hottest part of the year in the Northern Hemisphere, but the sun will be farther away than any other time in 2021 today, according to NASA. Today is Aphelion Day, and it marks the day that the Earth's orbit puts our planet at its greatest distance from the ...
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