Oxygenation in the tropical North Pacific Ocean increased during a warm climatic interval that occurred roughly 56 million years ago, despite high global temperatures, according to a new study.
geology
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Mars, Press Release
Diverse Ancient Volcanoes On Mars May Hold Clues To Pre-plate Tectonic Activity On Earth
Volcanoes are a common feature on the surfaces of solid planets within the solar system, resulting from magmatic activity occurring within the planetary crust. On Earth, volcanism is driven primarily […]
Posted inBiogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Mars, Missions & Hardware, Press Release, Robotics/Rovers/UAVs
Confirmation Of An Ancient Lake On Mars Builds Excitement For Perseverance Rover’s Samples
If life ever existed on Mars, the Perseverance rover’s verification of lake sediments at the base of the Jezero crater reinforces the hope that traces might be found in the […]
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Habitable Zones, Press Release, ROVs/Submersibles/Diving, Water/Hycean Worlds & Oceanography
Ocean Transform Faults Study Reveal Previously Unknown Part Of Earth’s Geological Carbon Cycle
Editor’s note: The Saint Peter and Saint Paul Archipelago was visited by the HMS Beagle with Charles Darwin aboard in 1832 and again by the HMS Challenger – the namesake […]
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Extinction events, Impact events, Press Release
More Than A Meteorite: New Clues About The Demise Of Dinosaurs
What wiped out the dinosaurs? A meteorite plummeting to Earth is only part of the story, a new study suggests. Climate change triggered by massive volcanic eruptions may have ultimately […]
Posted inArctic / Antarctic / Alpine, Astrogeology, Biogeochemical Cycles & Geobiology, Cryobiology, Extinction events, Gaia - Planetary Perspectives, Icy Worlds, Mapping, Geodesy, Cartography, Bathymetry, Press Release
What Turned Earth Into A Giant Snowball 700 Million Years Ago?
Australian geologists have used plate tectonic modelling to determine what most likely caused an extreme ice-age climate in Earth’s history, more than 700 million years ago.
Posted inEuropa, Icy Worlds, Imaging & Spectroscopy, Jupiter, Status Report
Subsurface Thermophysical Properties of Europa’s Leading and Trailing Hemispheres as Revealed by ALMA
We present best-fit values of porosity — and the corresponding effective thermal inertiae — determined from three different depths in Europa’s near-subsurface (~1-20 cm). The porosity of the upper ~20 […]
Posted inAnalog Studies, Astrogeology, Away Teams & Field Reports, Caves, Craters, Mountains, Subsurface, Lava Tubes, Exploration Gear & Tech, Fossils & Paleontology, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Missions & Hardware, Status Report, Tricorders & Sensors
Practicing For Offworld Away Team Missions: Astrogeology And Astrobiology On Lanzarote, Canary Islands
ESA spacewalk instructor Hervé Stevenin carries all sorts of instrumentation, from high-tech spectrometers to NASA replicas from the Apollo era. ESA is assessing if the tools are suitable for future […]
Posted inAstrogeology, Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Fossils & Paleontology, Press Release
Source Rocks Of Earth’s First Real Continents Have Been Uncovered
Geoscientists have uncovered a missing link in the enigmatic story of how the continents developed—a revised origin story that doesn’t require the start of plate tectonics or any external factor […]
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Status Report, Water/Hycean Worlds & Oceanography
Majority Of Water Hides Deep In The Interiors Of Exoplanets
Water is an important component of exoplanets, with its distribution, i.e., whether at the surface or deep inside, fundamentally influencing the planetary properties.