Planets form and obtain their compositions in disks of gas and dust around young stars. The
chemical compositions of these planet-forming disks regulate all aspects of planetary …

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 …

To date, 204 individual molecular species, comprised of 16 different elements, have been
detected in the interstellar and circumstellar medium by astronomical observations. These …

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 …

To date, 241 individual molecular species, composed of 19 different elements, have been
detected in the interstellar and circumstellar medium by astronomical observations. These …

Context. The inner regions of the envelopes surrounding young protostars are characterized
by a complex chemistry, with prebiotic molecules present on the scales where …

Context. One of the important questions of astrochemistry is how complex organic
molecules, including potential prebiotic species, are formed in the envelopes around …

Context. Urea, NH 2 C (O) NH 2, is a molecule of great importance in organic chemistry and
biology. Two searches for urea in the interstellar medium have been reported in the past, but …

Context. Theories of the origins of life propose that early cell membranes were synthesised
from amphiphilic molecules simpler than phospholipids, such as fatty alcohols. The …

Context. Complex organic molecules (COMs) have been detected in a few Class 0
protostars but their origin is not well understood. While the usual picture of a hot corino …