• Publications
  • Influence
Laboratory experiments of Titan tholin formed in cold plasma at various pressures: implications for nitrogen-containing polycyclic aromatic compounds in Titan haze
Titan, the largest satellite of Saturn, has a thick nitrogen /methane atmosphere with a thick global organic haze. A laboratory analogue of Titan’s haze, called tholin, was formed in an inductivelyExpand
The Effects of Parent Body Processes on Amino Acids in Carbonaceous Chondrites
To investigate the effect of parent body processes on the abundance, distribution, and enantiomeric composition of amino acids in carbonaceous chondrites, the water extracts from nine differentExpand
The 2140 cm-1 (4.673 microns) solid CO band: the case for interstellar O2 and N2 and the photochemistry of nonpolar interstellar ice analogs.
The infrared spectra of CO frozen in nonpolar ices containing N2, CO2, O2, and H2O and the UV photochemistry of these interstellar/precometary ice analogs are reported. The spectra are used to testExpand
Radar-Enabled Recovery of the Sutter’s Mill Meteorite, a Carbonaceous Chondrite Regolith Breccia
The Meteor That Fell to Earth In April 2012, a meteor was witnessed over the Sierra Nevada Mountains in California. Jenniskens et al. (p. 1583) used a combination of photographic and video images ofExpand
Understanding prebiotic chemistry through the analysis of extraterrestrial amino acids and nucleobases in meteorites.
The discoveries of amino acids of extraterrestrial origin in many meteorites over the last 50 years have revolutionized the Astrobiology field. A variety of non-terrestrial amino acids similar toExpand
Mechanisms of Amino Acid Formation in Interstellar Ice Analogs
Amino acids have been identified in carbonaceous chondrites, but their origin is yet unknown. Previous work has shown that a variety of amino acids can be formed via ultraviolet photolysis ofExpand
Cometary Glycine Detected in Samples Returned by Stardust
Our previous analysis of cometary samples returned to Earth by NASA's Stardust spacecraft showed several amines and amino acids, but the origin of these compounds could not be firmly established.Expand
Unusual Nonterrestrial L-proteinogenic Amino Acid excesses in the Tagish Lake Meteorite
The distribution and isotopic and enantiomeric compositions of amino acids found in three distinct fragments of the Tagish Lake C2-type carbonaceous chondrite were investigated via liquidExpand
Origin and Evolution of Prebiotic Organic Matter As Inferred from the Tagish Lake Meteorite
The study of organic matter in a well-preserved meteorite provides insight into processes that affected its parent asteroids. The complex suite of organic materials in carbonaceous chondriteExpand
A propensity for n-ω-amino acids in thermally altered Antarctic meteorites
Asteroids and their fragments have impacted the Earth for the last 4.5 Gyr. Carbonaceous meteorites are known to contain a wealth of indigenous organic molecules, including amino acids, whichExpand