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Categories: Geoscience: Oceanography, Offbeat: Space

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Engineering: Robotics Research Geoscience: Oceanography
Published

New framework for oceanographic research provides potential for broader access to deep sea scientific exploration      (via sciencedaily.com) 

Scientific exploration of the deep ocean has largely remained inaccessible to most people because of barriers to access due to infrastructure, training, and physical ability requirements for at-sea oceanographic research.

Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Mysterious Neptune dark spot detected from Earth for the first time      (via sciencedaily.com) 

Using ESO's Very Large Telescope (VLT), astronomers have observed a large dark spot in Neptune's atmosphere, with an unexpected smaller bright spot adjacent to it. This is the first time a dark spot on the planet has ever been observed with a telescope on Earth. These occasional features in the blue background of Neptune's atmosphere are a mystery to astronomers, and the new results provide further clues as to their nature and origin.

Biology: Marine Biology: Zoology Ecology: Endangered Species Ecology: Sea Life Geoscience: Environmental Issues Geoscience: Oceanography
Published

Loss of Antarctic sea ice causes catastrophic breeding failure for emperor penguins      (via sciencedaily.com)     Original source 

Emperor penguin colonies experienced unprecedented breeding failure in a region of Antarctica where there was total sea ice loss in 2022. The discovery supports predictions that over 90% of emperor penguin colonies will be quasi-extinct by the end of the century, based on current global warming trends.

Biology: Marine Ecology: Sea Life Geoscience: Oceanography Offbeat: Earth and Climate Offbeat: Plants and Animals
Published

Scientists solve mystery of why thousands of octopus migrate to deep-sea thermal springs      (via sciencedaily.com)     Original source 

Researchers used advanced technology to study a massive aggregation of deep-sea octopus gathered at thermal springs near an extinct underwater volcano off the coast of Central California. Warm water from hydrothermal springs accelerates development of octopus embryos, giving young octopus a better chance of survival. The Octopus Garden is the largest known aggregation of octopus on the planet -- the size of this nursery, and the abundance of other marine life that thrives in this rich community, highlight the need to understand and protect the hotspots of life on the deep seafloor from threats like climate change and seabed mining.

Biology: Evolutionary Offbeat: Plants and Animals Offbeat: Space Physics: General Space: Cosmology Space: General
Published

How a cup of water can unlock the secrets of our Universe      (via sciencedaily.com)     Original source 

A researcher made a discovery that could change our understanding of the universe. He reveals that there is a range in which fundamental constants can vary, allowing for the viscosity needed for life processes to occur within and between living cells. This is an important piece of the puzzle in determining where these constants come from and how they impact life as we know it.

Biology: Marine Biology: Zoology Ecology: Sea Life Geoscience: Oceanography Offbeat: Earth and Climate Offbeat: Plants and Animals
Published

Barnacles may help reveal location of lost Malaysia Airlines flight MH370      (via sciencedaily.com)     Original source 

Geoscientists have created a new method that can reconstruct the drift path and origin of debris from flight MH370, an aircraft that went missing over the Indian Ocean in 2014 with 239 passengers and crew. 

Geoscience: Environmental Issues Geoscience: Oceanography
Published

'Coastal squeeze:' Massive loss of U.S. coastline tidal flats over 31 years      (via sciencedaily.com)     Original source 

The entire contiguous U.S. has experienced massive urban expansions and the Atlantic Coast shows outstandingly high rates. Urban expansion has substantially squeezed the space of tidal flats and affected surrounding environments. In new urban areas, tidal flats have undergone considerable degeneration with more significant patterns as they get closer to new urban locations. Tidal flats protect against the ocean's destructive powers such as hurricanes. Without some inland spaces to move around, they will likely disappear, which will have dire consequences for beachfront communities.

Geoscience: Environmental Issues Geoscience: Oceanography
Published

Thinning ice sheets may drive sharp rise in subglacial waters      (via sciencedaily.com)     Original source 

A new study shows that water underneath glaciers may surge due to thinning ice sheets -- a dangerous feedback cycle that could increase glacial melt, sea level rise, and biological disturbances.

Offbeat: Space Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

New type of star gives clues to mysterious origin of magnetars      (via sciencedaily.com)     Original source 

Magnetars are the strongest magnets in the Universe. These super-dense dead stars with ultra-strong magnetic fields can be found all over our galaxy but astronomers don't know exactly how they form. Now, using multiple telescopes around the world, researchers have uncovered a living star that is likely to become a magnetar. This finding marks the discovery of a new type of astronomical object -- massive magnetic helium stars -- and sheds light on the origin of magnetars.

Environmental: Ecosystems Geoscience: Environmental Issues Geoscience: Oceanography
Published

Unprecedented look at what influences sea ice motion in the Arctic      (via sciencedaily.com)     Original source 

The in-depth analysis reveals how local tidal currents strongly affect the movement of sea ice in the Arctic ocean and provides an unprecedented look at how the makeup of the seafloor is causing some of the most abrupt changes.

Environmental: Ecosystems Geoscience: Environmental Issues Geoscience: Oceanography
Published

Oceans release microplastics into the atmosphere      (via sciencedaily.com)     Original source 

Tiny plastic particles can be found in the air over the oceans even far away from the coast. According to a new study, microplastics are not only carried by the wind, but also escape into the atmosphere from seawater. Researchers present data on the composition and sources of different types of plastic in the air over the North Atlantic and the origin of the particles.

Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: General
Published

Using supernovae to study neutrinos' strange properties      (via sciencedaily.com) 

In a new study, researchers have taken an important step toward understanding how exploding stars can help reveal how neutrinos, mysterious subatomic particles, secretly interact with themselves.

Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Hundred-year storms? That's how long they last on Saturn      (via sciencedaily.com) 

Megastorms regularly appear on Saturn, marring the relatively bland surface before disappearing. But radio observations show that the storms have long-lasting effects deeper in the atmosphere, in particular in the distribution of ammonia. Using NRAO's Very Large Array, astronomers see such impacts from storms that happened hundreds of years ago. The findings will help explain the differences between storms on the gas giants Saturn and Jupiter.

Geoscience: Environmental Issues Geoscience: Oceanography Space: General Space: The Solar System
Published

Could artificially dimming the sun prevent ice melt?      (via sciencedaily.com)     Original source 

With methods of so-called geoengineering, the climate could theoretically be artificially influenced and cooled. Researchers have now investigated whether it would be possible to prevent the melting of the West Antarctic ice sheet by artificially 'dimming the sun'. The results show that artificial influence does not work without decarbonization and entails high risks.

Biology: Marine Ecology: Sea Life Geoscience: Environmental Issues Geoscience: Oceanography
Published

Microplastics found embedded in tissues of whales and dolphins      (via sciencedaily.com)     Original source 

Microscopic plastic particles have been found in the fats and lungs of two-thirds of the marine mammals in a graduate student's study of ocean microplastics. The presence of polymer particles and fibers in these animals suggests that microplastics can travel out of the digestive tract and lodge in the tissues.

Anthropology: Early Humans Anthropology: General Geoscience: Environmental Issues Geoscience: Oceanography Paleontology: Climate
Published

How a massive North Atlantic cooling event disrupted early human occupation in Europe      (via sciencedaily.com)     Original source 

A new study finds that around 1.12 million years ago a massive cooling event in the North Atlantic and corresponding shifts in climate, vegetation and food resources disrupted early human occupation of Europe.

Offbeat: Space Space: Exploration Space: General Space: The Solar System
Published

Possible seasonal climate patterns on early Mars      (via sciencedaily.com)     Original source 

New observations of mud cracks made by the Curiosity Rover show that high-frequency, wet-dry cycling occurred in early Martian surface environments, indicating that the red planet may have once seen seasonal weather patterns or even flash floods.

Biology: Marine Ecology: Sea Life Environmental: Biodiversity Environmental: Ecosystems Geoscience: Oceanography
Published

Top fish predators could suffer wide loss of suitable habitat by 2100 due to climate change      (via sciencedaily.com)     Original source 

A study of 12 species of highly migratory fish predators -- including sharks, tuna, and billfish such as marlin and swordfish -- finds that most of them will encounter widespread losses of suitable habitat and redistribution from current habitats in the Northwest Atlantic Ocean (NWA) and the Gulf of Mexico (GOM) by 2100. These areas are among the fastest warming ocean regions and are projected to increase between 1-6°C (+1-10°F) by the end of the century, a sign of climate-driven changes in marine ecosystems.