Chondrules probably formed during a small window of time ∼1-4 Ma after CAIs, when most solid matter in the asteroid belt was already in the form of km-sized planetesimals.
Comets and Asteroids
Posted inAstrochemistry, Astrogeology, Biogeochemical Cycles & Geobiology, Comets and Asteroids, Habitable Zones, Icy Worlds, Mapping, Geodesy, Cartography, Bathymetry, Pluto, Status Report, Water/Hycean Worlds & Oceanography
Moderate D/H Ratios in Methane Ice on Eris and Makemake as Evidence of Hydrothermal or Metamorphic Processes in Their Interiors: Geochemical Analysis
Dwarf planets Eris and Makemake have surfaces bearing methane ice of unknown origin. D/H ratios were recently determined from James Webb Space Telescope (JWST) observations of Eris and Makemake, giving […]
Posted inAstrochemistry, Astrogeology, Biosignatures & Paleobiology, Comets and Asteroids, Meteorites & Asteroids, Missions & Hardware, Status Report
OSIRIS-REx Asteroid Sample Astrogeology / Astrobiology Analysis Update
NASA’s OSIRIS-REx spacecraft delivered 4.29 ounces (121.6 grams) of material from asteroid Bennu when it returned to Earth on Sep. 24, 2023; the largest asteroid sample ever collected in space […]
Posted inAstrochemistry, Astrogeology, Astronomy & Telescopes, Comets and Asteroids, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Curves Of Growth For Transiting Exocomets: Application To Fe II Lines In The Beta Pictoris System
This study introduces the exocomet curve of growth, a new method to analyse the variable absorptions observed in β Pictoris spectrum and link them to the physical properties of the […]
Posted inAstrochemistry, Astrogeology, Callisto, Comets and Asteroids, Enceladus, Europa, Ganymede, Habitable Zones, Icy Worlds, Press Release, Water/Hycean Worlds & Oceanography
SwRI Scientists Find Evidence Of Geothermal Activity Within Icy Dwarf Planets
A team co-led by Southwest Research Institute found evidence for hydrothermal or metamorphic activity within the icy dwarf planets Eris and Makemake, located in the Kuiper Belt. Methane detected on […]
Posted inAstrochemistry, Astrogeology, Astronomy & Telescopes, Biogeochemical Cycles & Geobiology, Comets and Asteroids, Imaging & Spectroscopy, Press Release
SwRI Scientists Identify Water Molecules On Asteroids For The First Time
Using data from the retired Stratospheric Observatory for Infrared Astronomy (SOFIA) — a joint project of NASA and the German Space Agency at DLR — Southwest Research Institute scientists have […]
Posted inAstrochemistry, Astrogeology, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Comets and Asteroids, Meteorites & Asteroids, Missions & Hardware, Press Release, Tricorders & Sensors
Ultrasound Assisted Extraction Of Amino Acids And Nucleobases From Clay Minerals And Astrobiological Samples
The study of organic molecules in meteorite and return samples allows for the understanding of the chemistry that undergoes in our Solar System. The present work aims at studying ultrasound […]
Posted inAstrochemistry, Astrogeology, Astronomy & Telescopes, Comets and Asteroids, Imaging & Spectroscopy, Interstellar, Status Report, Stellar Cartography
Predicting Interstellar Object Chemodynamics With Gaia
The interstellar object population of the Milky Way is a product of its stars. However, what is in fact a complex structure in the Solar neighbourhood has traditionally in ISO […]
Posted inComets and Asteroids, Exoplanets, -moons, -comets, Gas Giants, Imaging & Spectroscopy, Impact events, Jupiter, Status Report
The Impact Of Cometary Impacts On The Chemistry, Climate, And Spectra Of Hot Jupiter Atmospheres
Impacts from icy and rocky bodies have helped shape the composition of solar system objects, for example the Earth-Moon system, or the recent impact of comet Shoemaker-Levy 9 with Jupiter. […]
Posted inAstrochemistry, Astrogeology, Comets and Asteroids, Meteorites & Asteroids, Press Release
The Asteroid That Impacted Near Berlin Has Been Identified As A Rare Aubrite
The official classification now aligns with what many suspected from merely looking at the images of the strange meteorites that fell near Berlin on January 21, 2024. They belong to […]