Oceanography
Posted inAstrogeology, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Extinction events, Gaia - Planetary Perspectives, Habitable Zones, Lava / magma ocean / Volcanic Worlds, Magnetic Fields, Electromagnetism, bioelectricity,, Origin & Evolution of Life, Press Release, Water/Hycean Worlds & Oceanography

New Study Reveals Asynchronous Land–ocean Responses To Ancient Ocean Anoxia

by Keith Cowing

Earth experienced a period of intense, large-scale volcanism during the early Aptian. Around that time, it also experienced widespread ocean deoxygenation during the Oceanic Anoxic Event 1a (OAE1a) as well […]

Posted inAstrochemistry, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Reports, Roadmaps, & Plans, Status Report, Water/Hycean Worlds & Oceanography

Ocean Worlds Working Group (OWWG) Draft Traceability Available For Community Comment

by Keith Cowing

The Ocean Worlds Working Group (OWWG) has released a draft traceability matrix that defines the OWWG’s driving science questions for future Ocean Worlds exploration, and the science investigations, measurements, instruments, […]

Posted inAI - Data - Apps - Cybernetics, Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Microbiology & Virology, Missions & Hardware, ROVs/Submersibles/Diving, Sample Return, Status Report, Water/Hycean Worlds & Oceanography

Deployable Artificial Intelligence for Exploration and Discovery in the Deep Sea

by Keith Cowing

Editor’s note: When we start to mount Astrobiology missions to explore ocean worlds we’ll need ways for our robotic submersibles to observe and interact with whatever life forms they may […]

Posted inArctic / Antarctic / Alpine, Biosignatures & Paleobiology, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Microbiology & Virology, Polar / Alpine Expeditions, Press Release, ROVs/Submersibles/Diving, Sample Return, Water/Hycean Worlds & Oceanography

Deep-sea Microbes Get An Unexpected Energy Boost

by Keith Cowing

For many years, the deep ocean has been seen as a nutrient-poor environment where microbes living in the water survive on very limited resources. But new research from the University […]

Posted inBiogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Habitable Zones, Microbiology & Virology, Press Release, Water/Hycean Worlds & Oceanography

One Of Earth’s Most Abundant Organisms Is Surprisingly Fragile

by Keith Cowing

A group of ocean bacteria long considered perfectly adapted to life in nutrient-poor waters may be more vulnerable to environmental change than scientists realized.

Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Extinction events, Nomenclature, Systematics, Natural History, Origin & Evolution of Life, Status Report

Key Drivers Of Recurrent Extinction In The Triassic

by Keith Cowing

Mass extinctions are extremely catastrophic events on Earth. Throughout Earth’s evolutionary history, numerous mass extinctions have occurred, with five major mass extinctions being particularly representative.

Posted inAtmospheres, Climate, Weather, Biosignatures & Paleobiology, Habitable Zones, Imaging & Spectroscopy, Status Report, TRAPPIST-1, Water/Hycean Worlds & Oceanography

Possible Favored Great Oxidation Event Scenario On Exoplanets Around M-Stars With The Example Of TRAPPIST-1e

by Keith Cowing

The Great Oxidation Event (GOE), which marked the transition from an anoxic to an oxygenated atmosphere, occurred 2.4 billion years ago on Earth, several hundreds of millions of years after […]

Posted inBiochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Microbiology & Virology, Status Report

Evolutionary Stasis And Homogeneous Selection Structure Microbial Communities In The Deep Subseafloor Sedimentary Biosphere

by Keith Cowing

The subseafloor biosphere, one of the Earth’s largest and most stable microbial habitats, mainly consists of energy-limited sediments where microbial life persists over geological timescales.

Posted inAway Teams & Field Reports, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Habitable Zones, Press Release, ROVs/Submersibles/Diving, Sample Return, Water/Hycean Worlds & Oceanography

Organic Carbon In A Submarine Pressure Cooker

by Keith Cowing

The mid-ocean ridge runs through the oceans like a suture. Where the Earth’s plates move apart, new oceanic crust is continuously formed. This is often accompanied by magmatism and hydrothermal […]

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