ArticleNature astronomy2025
Abundant ammonia and nitrogen-rich soluble organic matter in samples from asteroid (101955) Bennu.
Article in Nature astronomy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.
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57 citing papers in PubMed.
- Reconstructing the aqueous environment of the Ryugu parent body through the speciation of multiple elements.Nature communications · 2026Article
- Nucleosynthetic constraints on the origin of Bennu and CI-like asteroids.Science advances · 2026Article
- From searching for extraterrestrial biosignatures to exploring the origins of life: A prebiotic chemistry perspective.Fundamental research · 2026Review
- Extraterrestrial amino acids evolve differently in asteroid Bennu and Ryugu: Possible mechanisms and future perspectives.Fundamental research · 2026Article
- Catalytic non-energetic formation of diverse peptides on cosmic dust under extraterrestrial conditions.Communications chemistry · 2026Article
- Gradual Destruction of Refractory Stardust in Alkali Brines on Asteroid Bennu.Nature communications · 2026Article
- Emergence of biosignatures on Earth and implications for life detection.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Ryugu and Bennu preserve primordial isotopic heterogeneity absent from the meteorite record.Nature communications · 2026Article
- Meteor over New York City: Brines in a primitive CM asteroid.Science advances · 2026Article
- Origin of sulfur allotropes on the carbonaceous asteroid Ryugu and implications to the sulfur chemistry in the interstellar medium.Science advances · 2026Article
- Interstellar Stereoisomerism.ACS earth & space chemistry · 2026Review
- Asteroid sample return missions are critical for understanding our Solar System.Nature communications · 2026Article
- Ammonium-bearing phyllosilicate grains detected in Ryugu and Bennu samples via infrared spectroscopy.Nature communications · 2026Article
- The master molecule that built biology: How water shaped the chemistry of life.Protein science : a publication of the Protein Society · 2026Review
- Direct observation of organic molecules in asteroid ryugu revealed by high-resolution atomic force microscope.Nature communications · 2026Article
- Impact-processed nitrogen-bearing organics in Chang'e-5 and Chang'e-6 lunar regolith.Science advances · 2026Article
- Nanoscale infrared spectroscopy reveals complex organic-mineral assemblages in asteroid Bennu.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- A highly limited amino acid library from asteroid Bennu yields wide-ranging protein folds.Nature communications · 2026Article
- Distribution of extraterrestrial nucleobases, other N-heterocycles, and their precursors in a sample from asteroid Bennu.Communications chemistry · 2026Article
- Stringent selection on kinetics of condensation reactions: early steps in chemical evolution.Physical chemistry chemical physics : PCCP · 2026Article
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62 authors.
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Abstract
Organic matter in meteorites reveals clues about early Solar System chemistry and the origin of molecules important to life, but terrestrial exposure complicates interpretation. Samples returned from the B-type asteroid Bennu by the Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer mission enabled us to study pristine carbonaceous astromaterial without uncontrolled exposure to Earth's biosphere. Here we show that Bennu samples are volatile rich, with more carbon, nitrogen and ammonia than samples from asteroid Ryugu and most meteorites. Nitrogen-15 isotopic enrichments indicate that ammonia and other N-containing soluble molecules formed in a cold molecular cloud or the outer protoplanetary disk. We detected amino acids (including 14 of the 20 used in terrestrial biology), amines, formaldehyde, carboxylic acids, polycyclic aromatic hydrocarbons and N-heterocycles (including all five nucleobases found in DNA and RNA), along with ~10,000 N-bearing chemical species. All chiral non-protein amino acids were racemic or nearly so, implying that terrestrial life's left-handed chirality may not be due to bias in prebiotic molecules delivered by impacts. The relative abundances of amino acids and other soluble organics suggest formation and alteration by low-temperature reactions, possibly in NH
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