Astronomers have found the organic molecule methyl alcohol, or methanol, in the protoplanetary disc of TW Hydrae, 175 light-years from Earth — the first such detection of this chemical compound in a young planet-forming disc. Since methanol forms on the icy coatings of dust grains, this discovery provides a window into the region where comets are likely forming.
Astronomers using the Atacama Large Millimeter/submillimetre Array (ALMA) have discovered two spectacular rings of molecules encircling the young, Sun-like star IM Lup. The rings are made up of one of the most common heavy ions in space — DCO+ (deuterium, carbon, oxygen). This chemistry reveals new insights into the conditions of the planet-forming disc surrounding this star.