The Influence of Tidal Forces Extends to the Arctic’s Deep Sea

From more than 384,000 kilometers away, the Moon’s gravity pulls at Earth and its oceans, even affecting activity hundreds of meters below the sea surface. Oceanographers know that tides can affect methane emissions that seep from the seafloor, and now a research team has shown this influence extends into the deep Arctic. Unexpected […]

Eating omega-3 fat helps hibernating Arctic ground squirrels warm up during deep cold

Two wild arctic ground squirrels touch noses in the northern Brooks Range during summer. Credit: Rhiannan William By feeding arctic ground squirrels special diets, researchers have found that omega-3 fatty acids, common in flax seed and fish oil, help keep the animals warmer in deep hibernation. A University of Alaska Fairbanks-led study fed ground squirrels […]

Deep Decarbonization? Yes We Can!

Staying within a 1.5°C global warming limit will require transformation of our economy to net-zero emissions by 2050, which seems like an enormously ambitious goal. And yet, with new in-depth modeling analysis, Williams et al. [2020] illuminate several technologically and economically feasible pathways to this required deep decarbonization. All pathways require enhanced energy […]

Sinking Fish May Fast-Track Mercury Pollution to the Deep Sea

Mercury pollution at Earth’s surface is leaving a mark on the deepest parts of the ocean. A new study suggests that sinking fish carcasses transport the element to seafloor ecosystems. “Mercury is not limited to the upper thousand meters of the ocean, as we once thought.” “Mercury is not limited to the upper […]

Deep, slow-slip action may direct largest earthquakes and their tsunamis

Map of the Cascadia subduction zone. Credit: Public Domain Megathrust earthquakes and subsequent tsunamis that originate in subduction zones like Cascadia—Vancouver Island, Canada, to northern California—are some of the most severe natural disasters in the world. Now a team of geoscientists thinks the key to understanding some of these destructive events may lie in the […]

Robot dogs could someday explore deep caves on Mars

Mars exploration is going to the dogs. The robot dogs, that is. Scientists are equipping four-legged, animal-mimicking robots with artificial intelligence (AI) and an array of sensing equipment to help the bots autonomously navigate treacherous terrain and subsurface caves on the Red Planet.  In a presentation on Dec. 14 at the annual meeting of the […]

A Robust Proxy for Geomagnetic Reversal Rates in Deep Time

North is north, until it isn’t. Earth’s magnetic field has repeatedly reversed itself, with magnetic north sometimes residing closer to today’s South Pole and vice versa. The time between these global-scale swaps has ranged from tens of thousands to millions of years, and the frequency of reversals may be linked to processes in […]

Deep Longevity publishes an epigenetic aging clock of unprecedented accuracy

IMAGE: Aging is accompanied by specific patterns of epigenetic marks that attach to DNA and can be studied to understand subcellular aging mechanisms view more  Credit: Fedor Galkin 8 December 2020 — Deep Longevity, a Hong-Kong based longevity startup, has published their research on the epigenetics of aging in the Aging and Disease journal. The article […]

The most life-friendly places on ancient Mars were deep below its surface

Cookie Settings Many products featured on this site were editorially chosen. Popular Science may receive financial compensation for products purchased through this site. Copyright © 2020 Popular Science. A Bonnier Corporation Company. All rights reserved. Reproduction in whole or in part without permission is prohibited. Source link #lifefriendly #places #ancient #Mars #deep #surface