Tag: Oceanography
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Cooler warm periods: How the Southern Ocean controlled climate and atmospheric CO2
Introduction: A long-standing climate puzzle For millions of years, the Earth’s climate oscillated between frigid glacial periods and warmer interglacials. Among these, the so-called lukewarm interglacials, spanning roughly from 800,000 to 430,000 years ago, are particularly intriguing. During these warmer phases, atmospheric CO2 hovered around 240–260 ppm, with later interglacials reaching 280–300 ppm. Today, CO2…
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Red Sea Dried, Then Flooded by Indian Ocean: 6.2 Million-Year Event
The Drying and the Flood: A dramatic Red Sea rebirth New research from King Abdullah University of Science and Technology (KAUST) reveals one of Earth’s most dramatic environmental episodes: the Red Sea dried completely about 6.2 million years ago and was suddenly reflooded by a catastrophic flood from the Indian Ocean. Using seismic imaging, microfossil…
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Megan McArthur Retires from NASA: A Stellar Career Overview
Introduction to Megan McArthur’s Remarkable Journey Astronaut Megan McArthur’s retirement from NASA marks the end of an extraordinary chapter in space exploration. With over two decades of dedicated service, McArthur has not only made significant contributions to space science but has also inspired countless individuals around the globe. From piloting submarines to commanding a space…
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This Week in Science: Brain-Boosting Smells, The Brightest Flash Ever, and More
This week in science brings a host of fascinating discoveries and developments that captivate the imagination while advancing our understanding of the world and beyond. From innovative health guidelines to cosmic mysteries, let’s explore the highlights of this week in science. **U.S. Blood Pressure Guidelines** In a groundbreaking move, health authorities in the U.S. have…
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Exploring the Depths: Antarctica’s Submarine Canyons Unveiled
In a groundbreaking achievement, researchers have unveiled the most detailed map of Antarctica’s submarine canyons to date, capturing a stunning 332 canyon networks that stretch over the continent’s icy seafloor. This remarkable catalogue, detailed in the latest edition of Marine Geology, is transforming our understanding of the undersea landscape of one of the world’s last…
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Unraveling Antarctica’s Secrets: Mapping the Submarine Canyons
In a remarkable breakthrough for oceanography and geological science, researchers have unveiled the most extensive and precise map of Antarctica’s submarine canyons to date. This cutting-edge catalogue identifies a staggering total of 332 distinct canyon networks that wind and weave their way across the icy continent’s submerged terrain. These underwater chasms are not only breathtaking…
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Exploring Antarctica’s Underwater Wonders: A New Era in Submarine Cartography
In a groundbreaking development, scientists have unveiled a high-resolution catalogue that meticulously maps 332 submarine canyon networks on the seafloor of Antarctica. This impressive feat represents a significant advancement in understanding the complex underwater landscape of one of the most remote regions on Earth. Traditionally shrouded in mystery, the depths of the Antarctic continental shelf…