ArticleProceedings of the National Academy of Sciences of the United States of America2006
Organic haze on Titan and the early Earth.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.
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Who cites it
32 citing papers in PubMed, 259 citations in OpenAlex.
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- The hydrogen, methane and ammonia biosphere on early Earth.Scientific reports · 2026Article
- Is a constitutive red-shift an advantage for oxygenic photosynthesis under M dwarf starlight? Insights fromFEMS microbes · 2026Article
- An Archean atmosphere rich in sulfur biomolecules.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Intercepting Methanimine for the Synthesis of Piperidine-BasedThe Journal of organic chemistry · 2025Article
- Evolution of complex chemical mixtures reveals combinatorial compression and population synchronicity.Nature chemistry · 2025Article
- Laboratory Studies on the Influence of Hydrogen on Titan-like Photochemistry.ACS earth & space chemistry · 2024Article
- Reactant Discovery with anACS earth & space chemistry · 2024Article
- The Composition and Chemistry of Titan's Atmosphere.ACS earth & space chemistry · 2024Review
- A revised lower estimate of ozone columns during Earth's oxygenated history.Royal Society open science · 2022Article
- On an EUV Atmospheric Simulation Chamber to Study the Photochemical Processes of Titan's Atmosphere.Scientific reports · 2020Article
- The Archean atmosphere.Science advances · 2020Review
- Exoplanet Biosignatures: A Framework for Their Assessment.Astrobiology · 2018Review
- Exoplanet Biosignatures: A Review of Remotely Detectable Signs of Life.Astrobiology · 2018Review
- Constraining the climate and ocean pH of the early Earth with a geological carbon cycle model.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
- Organic Haze as a Biosignature in Anoxic Earth-like Atmospheres.Astrobiology · 2018Article
- The Habitability of Proxima Centauri b: Environmental States and Observational Discriminants.Astrobiology · 2018Article
- The Coevolution of Life and Environment on Mars: An Ecosystem Perspective on the Robotic Exploration of Biosignatures.Astrobiology · 2018Article
- Biological regulation of atmospheric chemistry en route to planetary oxygenation.Proceedings of the National Academy of Sciences of the United States of America · 2017Article
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Authors and funding
7 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Recent exploration by the Cassini/Huygens mission has stimulated a great deal of interest in Saturn's moon, Titan. One of Titan's most captivating features is the thick organic haze layer surrounding the moon, believed to be formed from photochemistry high in the CH(4)/N(2) atmosphere. It has been suggested that a similar haze layer may have formed on the early Earth. Here we report laboratory experiments that demonstrate the properties of haze likely to form through photochemistry on Titan and early Earth. We have used a deuterium lamp to initiate particle production in these simulated atmospheres from UV photolysis. Using a unique analysis technique, the aerosol mass spectrometer, we have studied the chemical composition, size, and shape of the particles produced as a function of initial trace gas composition. Our results show that the aerosols produced in the laboratory can serve as analogs for the observed haze in Titan's atmosphere. Experiments performed under possible conditions for early Earth suggest a significant optical depth of haze may have dominated the early Earth's atmosphere. Aerosol size measurements are presented, and implications for the haze layer properties are discussed. We estimate that aerosol production on the early Earth may have been on the order of 10(14) g.year(-1) and thus could have served as a primary source of organic material to the surface.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.