Magma oceans are episodes of large-scale melting of the mantle of terrestrial planets.
Biogeochemical Cycles & Geobiology
Posted inAway Teams & Field Reports, Biogeochemical Cycles & Geobiology, Enceladus, Europa, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Press Release, Water/Hycean Worlds & Oceanography
Whispers From The Deep Sea: The Subtle Sounds Of Hydrothermal Vents
Deep-sea hydrothermal vents host unique life that survives without sunlight, and they play a significant role in the cycle of heat, water, and chemicals within the ocean.
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Ganymede, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Status Report
Probing Ganymede’s Atmosphere With HST Lyα Images In Transit Of Jupiter
We report results from far-ultraviolet observations by the Hubble Space Telescope of Jupiter’s largest moon Ganymede transiting across the planet’s dayside hemisphere.
Posted inAstrochemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Enceladus, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Status Report
Detection Of HCN And Diverse Redox Chemistry In The Plume Of Enceladus
The Cassini spacecraft discovered that Saturn’s moon Enceladus possesses a series of jets erupting from its South Polar Terrain.
Posted inAstrochemistry, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Press Release, Venus
Venus, Phosphine, And The Possibility Of Life
The search for life elsewhere in the universe is one of the central aims of science in the 21st century.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release
Webb Discovers LHS 475 b, An Earth-Sized, Rocky Planet
Researchers have confirmed the presence of an exoplanet, a planet that orbits another star, using the NASA/ESA/CSA James Webb Space Telescope for the first time. Formally classified as LHS 475 […]
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Press Release
Photochemical Hazes Can Trace The C/O Ratio In Exoplanet Atmospheres
Photochemical hazes are suspected to obscure molecular features, such as water, from detection in the transmission spectra of exoplanets with atmospheric temperatures < 800 K.
Posted inBiogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Press Release
The Abundance of Belatedly Habitable Planets And Ambiguities In Definitions Of The Continuously Habitable Zone
A planet’s history dictates its current potential to host habitable conditions and life. The concept of the Continuously Habitable Zone (CHZ) has been used to define the region around a […]
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Press Release, Water/Hycean Worlds & Oceanography
Redox State And Interior Structure Control On The Long-term Habitability Of Stagnant-lid Planets
A major goal in the search for extraterrestrial life is the detection of liquid water on the surface of exoplanets.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Extinction events, Impact events, Plant Biology, Press Release
Discovery Of Sunscreen-like Chemicals In Fossil Plants Reveals UV Radiation Played A Part In Mass Extinction Events
New research has uncovered that pollen preserved in 250 million year old rocks contain compounds that function like sunscreen, these are produced by plants to protect them from harmful ultraviolet […]