climate Archives

Surface elevation change from mid-2010 to mid-2020 over David 2 subglacial lake

Analog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Exploration Gear & Tech, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Polar / Alpine Expeditions, Press Release, Tricorders & Sensors, Water/Hycean Worlds & Oceanography

Ice Planet Survey: 85 New Subglacial Lakes Detected Below Antarctica

by Keith CowingSeptember 19, 2025September 19, 2025

Hidden beneath the biggest ice mass on Earth, hundreds of subglacial lakes form a crucial part of Antarctica’s icy structure, affecting the movement and stability of glaciers, and consequentially influencing […]

Sulfur crystals found inside a rock after NASA’s Curiosity Mars rover happened to drive over it and crush it on May 30, 2024. This discovery supports new research led by scientists at The University of Texas at Austin on what types of sulfur would be present on Mars billions of years ago. Credit NASA

Atmospheres, Climate, Weather, Habitable Zones, Lava / magma ocean / Volcanic Worlds, Mars, Press Release

Volcanic Emissions Of Reactive Sulfur Gases May Have Shaped Early Mars Climate, Making It More Hospitable To Life

by Keith CowingSeptember 12, 2025September 12, 2025

While the early Mars climate remains an open question, a new study suggests its atmosphere may have been hospitable to life due to volcanic activity which emitted sulfur gases that […]

NASA’s Solar Dynamics Observatory captured this image of an X1.5 solar flare peaking at 7:44 am EDT on May 11, 2024. The image shows a subset of extreme ultraviolet light that highlights the extremely hot material in flares created from a mixture of SDO’s AIA 193, 171 and 131 channels. -- larger image NASA

Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Gaia - Planetary Perspectives, Press Release, Radiation, Space Weather & Heliophysics

As Earth’s Atmosphere Changes, So Will Its Response To Geomagnetic Storms

by Keith CowingAugust 17, 2025

Rising concentrations of carbon dioxide in the upper atmosphere will change the way geomagnetic storms impact Earth, with potential implications for thousands of orbiting satellites, according to new research led […]

The radial gas temperature maps of planets from the 3D AFGKM ExoRad with a global temperature, Tglobal of 800K (left), 1600K (center) and 2400K (right) that orbit different host stars (top to bottom: A, G, M). The (Tgas, pgas)-maps gas are shown as equatorial slice plots. -- astro-ph.EP

AI - Data - Apps - Cybernetics, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Gas Giants, Status Report

Accelerating Exoplanet Climate Modelling: A Machine Learning Approach To Complement 3D GCM Grid Simulations

by Keith CowingAugust 15, 2025August 15, 2025

With the development of ever-improving telescopes capable of observing exoplanet atmospheres in greater detail and number, there is a growing demand for enhanced 3D climate models to support and help […]

This is an example of a debris-covered glacier on Mars. New research into these features suggests that they are purer than once thought, with implications for understanding Mars’ overall water budget and resource utilization on future crewed missions. Credit: NASA/JPL-Caltech/University of Arizona

Astrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Mars, Press Release

Mars Glaciers Are Purer And More Uniform Than Previously Thought

by Keith CowingJuly 25, 2025July 25, 2025

On the slopes of Martian mountains and craters clings what appears to be flowing honey, coated in dust and frozen in time. In reality, these features are incredibly slow-moving glaciers, […]

NASA’s Curiosity rover captured this photo as it ascended the Martian mountain Mt. Sharp. A study proposes a new explanation for why Mars is a barren desert today, despite having many similarities to Earth. Credit Photo by NASA/JPL-Caltech/MSSS

Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Desert Worlds, Habitable Zones, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Mars, Press Release

Was Mars Doomed To Be A Desert? Study Proposes A New Explanation

by Keith CowingJuly 2, 2025August 23, 2025

One of the great unsolved problems in modern planetary science is written on the surface of Mars.

Venus as seen by Himawari satellites. A photo with magnified sections to show just how small Venus is in the field of view of the observation satellites. Despite this limitation, researchers can still gather useful data. ©2025 Nishiyama et al. CC-BY-ND -- university of Tokyo

Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Press Release, Venus

Meteorological Satellites Observe Temperatures On Venus

by Keith CowingJuly 2, 2025July 2, 2025

Imaging data from Japan’s Himawari-8 and -9 meteorological satellites have been successfully used to monitor temporal changes in Venus’ cloud-top temperature, revealing unseen patterns in the temperature structure of various […]

Paleozoic marine biodiversity, atmospheric composition, and seafloor oxygenation history. (A) Paleozoic marine biodiversity curve (17), showing major biotic events including two biodiversification events during the late Cambrian–Ordovician (GOBE) and Carboniferous–early Permian (CPBE), and three mass extinction events during the end-Ordovician (OS), Frasnian–Famennian transition (FF), and Permian–Triassic transition (PT). (B) Box-whisker plots of carbonate δ238U data from 550 to 250 Ma based on 1,150 published data (orange; SI Appendix) and 147 data for the late Carboniferous to early Permian (blue box, including 108 new data from this study and 39 from ref. 19). The data are plotted primarily based on specific time interval or individual events from the literature (SI Appendix). Atmospheric paleo-O2 based on GEOCARBSULFOR (gray line and shading) (4), COPSE (gray dashed line) (13), and the observed charcoal record (gray dotted line) (12). Note two vertical scales (% atm and PIAL) for paleo-O2. Terrestrial organic sediment accumulation (green dashed line) from ref. 20. Multiproxy-based paleo-CO2 (black line and uncertainty band; from refs. 21 and 22. Blue vertical bars (bottom) indicate frequency of occurrence of glacial deposits in Southern Hemisphere basins (23) and geographic extent of continental glaciation for the end-Ordovician (24). -- PNAS

Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Gaia - Planetary Perspectives, Habitable Zones, Press Release, Water/Hycean Worlds & Oceanography

Massive Burps Of Carbon Dioxide Led To Oxygen-less Ocean Environments In The Deep Past

by Keith CowingJune 24, 2025

New research from the University of California, Davis, the Chinese Academy of Sciences and Texas A&M University reveals that massive emissions, or burps, of carbon dioxide from natural earth systems […]

This colorful web of wispy gas filaments is the Vela Supernova Remnant, an expanding nebula of cosmic debris left over from a massive star that exploded about 11,000 years ago. Credit: CTIO/NOIRLab/DOE/NSF/AURA Image Processing: T.A. Rector (University of Alaska Anchorage/NSF NOIRLab), M. Zamani & D. de Martin (NSF NOIRLab) Larger image

Astrochemistry, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Extinction events, Habitable Zones, Imaging & Spectroscopy, Interstellar, Magnetic Fields, Electromagnetism, bioelectricity,, Press Release, Radiation

Supernovae May Have Kicked Off Abrupt Climate Shifts In The Past, And They Could Again

by Keith CowingJune 18, 2025June 18, 2025

When a star explodes, it sends high-energy particles out in all directions. This burst of energy can travel through space for thousands of light-years, traversing solar systems and even galaxies.

Early Earth -- Grok via Astrobiology.com

Astrogeology, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Extremeophiles and Extreme Environments, Origin & Evolution of Life, Status Report

Biological, Equilibrium and Photochemical Signatures of C, N and S Isotopes in the Early Earth and Exoplanet Atmospheres

by Keith CowingJune 4, 2025June 4, 2025

The unambiguous detection of biosignatures in exoplanet atmospheres is a primary objective for astrobiologists and exoplanet astronomers.

climate

Ice Planet Survey: 85 New Subglacial Lakes Detected Below Antarctica

Volcanic Emissions Of Reactive Sulfur Gases May Have Shaped Early Mars Climate, Making It More Hospitable To Life

As Earth’s Atmosphere Changes, So Will Its Response To Geomagnetic Storms

Accelerating Exoplanet Climate Modelling: A Machine Learning Approach To Complement 3D GCM Grid Simulations

Mars Glaciers Are Purer And More Uniform Than Previously Thought

Was Mars Doomed To Be A Desert? Study Proposes A New Explanation

Meteorological Satellites Observe Temperatures On Venus

Massive Burps Of Carbon Dioxide Led To Oxygen-less Ocean Environments In The Deep Past

Supernovae May Have Kicked Off Abrupt Climate Shifts In The Past, And They Could Again

Biological, Equilibrium and Photochemical Signatures of C, N and S Isotopes in the Early Earth and Exoplanet Atmospheres

Juice Astrobiology Mission To Fly Past Earth For Third Gravity Assist

Planetary Health Check 2026 Finds Mounting Pressures Across Earth’s Life Support Systems – Reports And Proceedings

Prebiotic Peptide Formation Triggered By Urea-rich Warm Little Ponds On Early Earth

Thyles Rupes Region Of Mars

Do Himalayan-style Mountains Lie Under The Antarctic ice: Implication For The Gondwana Supermountains, The Rise Of Oxygen And The Cambrian Explosion?