Star-forming regions show a rich and varied chemistry, including the presence of complex
organic molecules—in both the cold gas distributed on large scales and the hot regions …

A new, more comprehensive model of gas–grain chemistry in hot molecular cores is
presented, in which nondiffusive reaction processes on dust-grain surfaces and in ice …

Evidence is mounting that the small bodies of our Solar system, such as comets and
asteroids, have at least partially inherited their chemical composition from the first phases of …

Recent laboratory measurements have confirmed that chemical desorption (desorption of
products due to exothermic surface reactions) can be an efficient process. The impact of …

ABSTRACT Our modern day Solar System has 4.6× 109 yr of evolution behind it with just a
few relics of its birth conditions remaining. Comets are thought to be some of the most …

Context. The presence of dust in the interstellar medium has profound consequences on the
chemical composition of regions where stars are forming. Recent observations show that …

Context. Complex organic molecules (COMs) are ubiquitously detected in the gas phase
and thought to be mostly formed on icy grains. Nevertheless, there have not been any …

New insights into the formation of interstellar formamide, a species of great relevance in
prebiotic chemistry, are provided by electronic structure and kinetic calculations for the …

Formamide (NH 2 CHO) has previously been detected in several star-forming regions and is
thought to be a precursor for different prebiotic molecules. Its formation mechanism is still …

Context. Modern versions of the Miller-Urey experiment claim that formamide (NH 2 CHO)
could be the starting point for the formation of metabolic and genetic macromolecules …