Europa, the second inner Jovian Galilean satellite, is believed to contain a global liquid water ocean covered by an ice shell likely 10s of kilometers thick. The paucity of impact […]
water world
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Astrobiology (general), Atmospheres, Climate, Weather, Away Teams & Field Reports, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Ceres, Enceladus, Europa, Exoplanets, -moons, -comets, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Gaia - Planetary Perspectives, Genomics, Proteomics, Bioinformatics, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Life Support Systems, Mapping, Geodesy, Cartography, Bathymetry, Mars, Microbiology & Virology, Mimas, Missions & Hardware, Origin & Evolution of Life, Robotics/Rovers/UAVs, ROVs/Submersibles/Diving, Sample Return, Space Life Science, Status Report, Titan, Tricorders & Sensors, Triton, Water/Hycean Worlds & Oceanography
Marine Science Can Contribute to the Search for Extra-Terrestrial Life
Abstract: Life on our planet likely evolved in the ocean, and thus exo-oceans are key habitats to search for extraterrestrial life. We conducted a data-driven bibliographic survey on the astrobiology […]
Posted inAstrochemistry, Astrogeology, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Comets and Asteroids, Icy Worlds, Neptune, Pluto, Status Report, Triton, Water/Hycean Worlds & Oceanography
Triton and Pluto: Same Origin But Separated At Birth [Two Possible Ocean Worlds]
Assessing the origin of Pluto and Triton has profound implications for the bigger picture of Solar System formation and evolution.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Gaia - Planetary Perspectives, Status Report, Water/Hycean Worlds & Oceanography
Characterization Of The Regimes Of Hydrodynamic Escape From Low-mass Exoplanets
The hydrodynamic escape driven by external or internal energy sources sculpts the population of low mass close-in planets. However, distinguishing between the driving mechanisms responsible for the hydrodynamic escape of […]
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Status Report, Water/Hycean Worlds & Oceanography
The Discovery and Follow-up of Four Transiting Short-period Sub-Neptunes Orbiting M dwarfs
Sub-Neptunes with 2−3R⊕ are intermediate in size between rocky planets and Neptune-sized planets. The orbital properties and bulk compositions of transiting sub-Neptunes provide clues to the formation and evolution of […]
Posted inBiochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exploration Gear & Tech, Habitable Zones, Microbiology & Virology, Press Release, Robotics/Rovers/UAVs, ROVs/Submersibles/Diving, Water/Hycean Worlds & Oceanography
Water World Dynamics: Earth’s Ocean Currents Act As An Expressway To Deeper Depths For Microorganisms
Editor’s note: as we begin to explore ocean worlds – which may be inhabited – we’ll need to understand how currents and other activities within these seas – seas that […]
Posted inAstrogeology, Astronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report, Water/Hycean Worlds & Oceanography
Observation Uncertainty Effects On The Precision Of Interior Planetary Parameters
Determining compositions of low-mass exoplanets is essential in understanding their origins. The certainty by which masses and radius are measured affects our ability to discern planets that are rocky or […]
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Press Release, Water/Hycean Worlds & Oceanography
Unlocking Clearer Views Of Water Worlds: A Landsat Legacy
Editor’s note: we are finding worlds orbiting other stars that may well be water worlds. These worlds may similar in some ways to our own and most likely different at […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Gas Giants, Press Release, Water/Hycean Worlds & Oceanography
Migration Solves An Exoplanet Puzzle
Ordinarily, planets in evolved planetary systems, such as the Solar System, follow stable orbits around their central star. However, many indications suggest that some planets might depart from their birthplaces […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
TESS and ESPRESSO Discover A Super-Earth And A Mini-Neptune Orbiting The K-dwarf TOI-238
The number of super-Earth and mini-Neptune planet discoveries has increased significantly in the last two decades thanks to transit and radial velocity surveys. When it is possible to apply both […]