In the past few years, several major space missions have been completed (eg, Deep Impact,
LCROSS, Chandrayaan-1, Stardust, Hayabusa), and a number of spacecraft are currently …

Jupiter's moon Europa, which is thought to possess a large liquid water ocean beneath its
icy crust, is one of the most compelling targets in the search for life beyond Earth. Its …

As discovery of complex molecules and ions in our solar system and the interstellar medium
has proliferated, several groups have turned to laboratory experiments in an effort to …

Context. Indene, a small PAH, has been detected in the gas phase in the cold dense cloud
TMC-1. Due to the low temperature in the cloud, below indene condensation temperature, its …

Pure methanol ices have been irradiated with monochromatic soft X-rays of 300 and 550 eV
close to the 1s resonance edges of C and O, respectively, and with a broadband spectrum …

Physical processing of Europan surface water ice by thermal relaxation, charged particle
bombardment, and possible cryovolcanic activity can alter the percentage of the crystalline …

Broad infrared emission features (eg, at 3.3, 6.2, 7.7, 8.6, and 11.3 μm) from the gas phase
interstellar medium have long been attributed to polycyclic aromatic hydrocarbons (PAHs). A …

The subsurface oceans of Enceladus and Europa are thought to be some of the best
candidate environments for finding life beyond Earth. Realistically, the first missions aimed …

Structural changes in hydrocarbon-doped water-ice during amorphous to crystalline phase
conversion are investigated using polycyclic aromatic hydrocarbons (PAHs) as probes. We …

The infrared (IR) and ultraviolet (UV) absorption spectra of pure solid N 2 and CH 4 diluted
in solid N 2 (1/100) irradiated with energetic electrons at 10 K were obtained. The IR …