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Search resuls for: "Dietmar Müller"


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Mars may be 140 million miles away, but its gravitational pull could be impacting Earth's oceans. Scientists at the University of Sydney in Australia believe the red planet's tug is creating "giant whirlpools" in the oceans called eddies, which can shift the deep-sea floor. This, they claim, is part of a 2.4-million-year climate "grand cycle" on Earth that has been ongoing for at least 40 million years. The red planet's orbit and ours are locked in an intricate dance, and every so often, these line up so that Mars' gravitational pull on Earth is just a little more intense — this is called resonance. This information is crucial when refining models helping us see how our planet's intricate climate will progress over time.
Persons: Adriana Dutkiewicz, NASA's, Dietmar Müller, Malin, Matthew England, Benjamin Mills, wasn't, Mills Organizations: Service, University of Sydney, Business, NASA's Goddard Space, geosciences, Nature Communications, Mars NASA, JPL, Systems, University of New, New, University of Leeds Locations: Australia, Japan, New, University of New South Wales, Sydney
CNN —Mars may be around 140 million miles away from Earth, but the red planet is influencing our deep oceans by helping drive “giant whirlpools,” according to new research. The sediments revealed that deep-sea currents weakened and strengthened over 2.4 million-year climate cycles, according to the study published Tuesday in the journal Nature Communications. For the Earth, this interaction with Mars translates to periods of increased solar energy — meaning a warmer climate — and these warmer cycles correlate with more vigorous ocean currents, the report found. The authors describe these currents, or eddies, as “giant whirlpools” that can reach the bottom of the deep ocean, eroding the seafloor and causing large accumulations of sediments, like snowdrifts. Deep-sea sediments build in continuous layers during calm conditions but strong ocean currents disrupt this, leaving a visible stamp of their existence.
Persons: Adriana Dutkiewicz, sedimentologist, , Dietmar Müller, Müller, , ” Müller, Joel Hirschi Organizations: CNN, Nature Communications, University of Sydney, Atlantic, National Oceanography
In 2021, geologists animated a video that shows how Earth's tectonic plates moved over the last billion years. But in 2021 a group of geologists offered up an easily digestible peek at 1 billion years of plate tectonic motion. Building a better model of Earth's platesThe Earth's plates move in a variety of ways and can cause earthquakes, mountains, and canyons. The top layer — between 5 and 50 miles thick — is the crust, which is fragmented into tectonic plates that fit together. The jigsaw puzzle of Earth's continents hasn't stopped shifting, of course.
Persons: Sabin Zahirovic, Pangea, Joshua Stevens, Dietmar Müller Organizations: Service, University of Sydney, U.S . Geological Survey, Geologists, NASA Locations: Antarctica, U.S, Sandwell, Africa, Europe
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