The 2023 perihelion passage of comet C/2022 E3 (ZTF) afforded an opportunity to measure the abundances and spatial distributions of coma volatiles in an Oort cloud comet at high spatial […]
organic chemistry
Amino Acids Discovered In Asteroid Bennu Formed In Space In The Early Solar System
Amino acids, the building blocks necessary for life, were previously found in samples of 4.6-billion-year-old rocks from an asteroid called Bennu, delivered to Earth in 2023 by NASA’s OSIRIS-REx mission.
NASA Study: Non-biologic Processes Don’t Fully Explain Mars Organics
In a new study, researchers say that non-biological sources they considered could not fully account for the abundance of organic compounds in a sample collected on Mars by NASA’s Curiosity […]
James Webb Space Telescope Reveals An Exceptional Richness Of Organic Molecules In One Of The Most Infrared Luminous Galaxies In The Local Universe
The study focuses on IRAS 07251–0248, an ultra-luminous infrared galaxy whose nucleus is hidden behind vast amounts of gas and dust. This material absorbs most of the radiation emitted by […]
A Chemistry-First Centered Icy Chemical Inventory of Protostellar Sources with JWST
The chemical evolution in star forming regions is driven by the interplay between gas and ice mantles. Identifying the ice compositions at the early stage of star formation thus provides […]
Broadband Infrared Spectroscopy Of Methanol Isotopologues In pure, H2O-rich, And CO-rich Ice Analogues
Deuterium fractionation is highly efficient during the early stages of star formation, particularly in starless and prestellar cores where temperatures are low (<10 K) and molecular freeze-out onto dust grains […]
Astrochemistry: A Gas-phase “Top-down” Chemical Link Between Aldehydes And Alcohols
Alcohols and aldehydes represent two key classes of interstellar complex organic molecules (COMs). This work seeks to better understand their possible chemical connections, with a focus on such molecules in […]
Atom Addition Formation of Thionylimide (HNSO) on Interstellar Dust Grains: Chemical Routes Requiring Oxygen And Nitrogen Atom Surface Diffusion
We investigate the formation of the recently detected HNSO molecule using quantum chemical calculations on ices and astrochemical models in tandem.
Abundant Hydrocarbons In A Buried Galactic Nucleus With Signs Of Carbonaceous Grain And Polycyclic Aromatic Hydrocarbon Processing
Hydrocarbons play a key role in shaping the chemistry of the interstellar medium (ISM), but their enrichment and relationship with carbonaceous grains and polycyclic aromatic hydrocarbons (PAHs) still lack clear […]
This Student Made Cosmic Dust In Her Lab. What She Found Could Help Us Understand How Life Started On Earth
A Sydney PhD student has recreated a tiny piece of the Universe inside a bottle in her laboratory, producing cosmic dust from scratch. The results shed new light on how […]
