Ceres – Page 2 – My WordPress Site

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Analog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Ceres, Cryobiology, Enceladus, Europa, Exoplanets, -moons, -comets, Exploration Gear & Tech, Ganymede, Icy Worlds, Mimas, Missions & Hardware, Robotics/Rovers/UAVs, ROVs/Submersibles/Diving, Sample Return, Water/Hycean Worlds & Oceanography

Through-Ice Acoustic Communication For Ocean Worlds Exploration

by Keith CowingSeptember 22, 2024September 22, 2024

Artist’s rendition of variety of exoplanets featured in the new NASA TESS-Keck Survey Mass Catalog, the largest, single, homogenous analysis of TESS planets released by any survey thus far. Credit: W. M. Keck Observatory/Adam Makarenko

Alpha Centauri, Astrogeology, Beta Pictoris, Ceres, Exoplanets, -moons, -comets, Gas Giants, Icy Worlds, Jupiter, Lava / magma ocean / Volcanic Worlds, Mapping, Geodesy, Cartography, Mars, Mercury, Neptune, Pluto, Proxima Centauri, Saturn, tau Ceti, TRAPPIST-1, Uranus, Venus, Water/Hycean Worlds & Oceanography

Classifications For Exoplanet and Exoplanetary Systems

by Keith CowingSeptember 17, 2024September 17, 2024

Astrochemistry, Astrogeology, Biogeochemical Cycles & Geobiology, Ceres, Comets and Asteroids, Exoplanets, -moons, -comets, Habitable Zones, Icy Worlds, Mars, Mercury, Meteorites & Asteroids, Water/Hycean Worlds & Oceanography

The Building Materials For Water-rich Planets In The Early Solar System

by Keith CowingJuly 25, 2024July 25, 2024

This artist's impression shows the star TRAPPIST-1 with two planets transiting across it. ExoMiner++, a recently updated open-source software package developed by NASA, uses artificial intelligence to help find new transiting exoplanets in data collected by NASA’s missions. NASA, ESA, and G. Bacon (STScI)

Astrochemistry, Astrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Caves, Craters, Mountains & Lava Tubes, Ceres, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Missions & Hardware, Water/Hycean Worlds & Oceanography

Spectral Properties Of Bright Deposits In Permanently Shadowed Craters On Ceres

by Keith CowingJuly 24, 2024July 24, 2024

Locations of the five stars (yellow circles) that dominate the ionization of the local clouds, shown in Galactic coordinates

Astrochemistry, Astrogeology, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Ceres, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy

New Candidates for Organic-rich Regions on Ceres

by Keith CowingJune 24, 2024June 24, 2024

Astrochemistry, Astrogeology, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Ceres, Icy Worlds, Imaging & Spectroscopy, Missions & Hardware

Photochemical Stability and Reactivity of Sodium Pyruvate: Implications for Organic Analysis on Ceres

by Keith CowingJune 19, 2024June 19, 2024

A representative sample of nine historical events from Table 5. The top row shows nearby (< 4 kpc) events for which a combination of all three mass-distance relations (θE, πE, lens flux) give an unambiguously measured lens mass and distance. The yellow data with error bars shows the best fit result from image-constrained modeling, the blue contours give the posterior distribution (central 39%, 86%, 99%) from pyLIMASS. The middle row shows more distant events (> 4 kpc) for which the estimate of lens mass and distance is still relatively accurate but less precise. The bottom row shows problematic events for which there are degeneracies that remain (MB10328; Vandorou et al. 2025b), or the identification of the lens is dubious (MB11262; Terry et al. 2025b), or the significantly overlapping θE and πE relations result in large errors (OB141760; Rektsini et al. 2025).-- astro-ph.EP

Analog 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, Mars, Microbiology & Virology, Mimas, Missions & Hardware, Origin & Evolution of Life, Robotics/Rovers/UAVs, ROVs/Submersibles/Diving, Sample Return, Space Life Science, Titan, Tricorders & Sensors, Triton, Water/Hycean Worlds & Oceanography

Marine Science Can Contribute to the Search for Extra-Terrestrial Life

by Keith CowingJune 9, 2024June 9, 2024

Cartoon illustrating the physical configuration for sustaining a hydrothermal siphon, with primary driving and resistive forces as applied in this study. Terms are discussed in text and combined in Equation 2. ∆Pv (>0) is primary driving energy in simulations, based on differences in temperature and density between recharging and discharging columns of pore fluid. ∆PR, ∆PD, ∆PC, and ∆PL (≤0) are pressure (energy) losses, depending on formation properties and the extent of secondary convection. ∆Psiph is what remains of ∆Pv after accounting for loss terms, available to drive siphon flow. s = sediment/conductive boundary layer, bu = upper rocky layer, ba = aquifer layer. This cartoon neglects other potential driving forces such as tidal pumping and buoyancy generated by exothermic reactions. -- Journal of Geophysical Research: Planets

Astrochemistry, Astrogeology, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Ceres, Impact events

Hypervelocity Impact Experiments Probe The Origin Of Organics On The Dwarf Planet Ceres

by Keith CowingOctober 16, 2023October 16, 2023

TOI-2266 b’s location in the period-radius plane with the currently known planets orbiting M dwarfs. The planets without sufficiently precise density estimates are shown as grey crosses (From exoplanet.eu, accessed 2023 April 24), while the planets with well-constrained densities from the catalogue by Luque & Pallé (2022) are separated by their likely type: rocky planets are shown as black dots, water worlds as blue circles, and sub-Neptunes as green circles. The upper radius limits for rocky planets for the gas-depleted formation and thermally-driven mass loss scenarios are drawn as dashed lines. -- astro-ph.EP

Astrochemistry, Astrogeology, Ceres, Comets and Asteroids, Imaging & Spectroscopy, Meteorites & Asteroids

An Unknown Class Of Water-rich Asteroids Has Been Identified

by Keith CowingFebruary 20, 2023February 20, 2023

Biosignatures & Paleobiology, Ceres, Habitable Zones, Icy Worlds, Meteorites & Asteroids, Microbiology & Virology, Origin & Evolution of Life, Water/Hycean Worlds & Oceanography

Bacterial Utilisation Of Aliphatic Organics: Is the Dwarf Planet Ceres Habitable?

by Keith CowingFebruary 7, 2023February 7, 2023