Of the over 150 different molecular species detected in the interstellar and circumstellar
media, approximately 50 contain 6 or more atoms. These molecules, labeled complex by …

Our Sun and planetary system were born about 4.5 billion years ago. How did this happen,
and what is the nature of our heritage from these early times? This review tries to address …

We report the detection for the first time in space of three new pure hydrocarbon cycles in
TMC-1: cC 3 HCCH (ethynyl cyclopropenylidene), cC 5 H 6 (cyclopentadiene), and cC 9 H 8 …

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

We report the detection, for the first time in space, of a new non-functionalised hydrocarbon
cycle in the direction of TMC-1: oC 6 H 4 (ortho-benzyne). We derive a column density for …

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

We present the fifth release of the UMIST Database for Astrochemistry (UDfA). The new
reaction network contains 6173 gas-phase reactions, involving 467 species, 47 of which are …

We report the detection of fulvenallene (cC 5 H 4 CCH 2) in the direction of TMC-1 with the
QUIJOTE 1 line survey. Thirty rotational transitions with K a= 0, 1, 2, 3 and J= 9− 15 were …

Although first considered as too diluted for the formation of molecules in-situ and too harsh
an environment for their survival, the interstellar medium has turned out to host a rich palette …

The introduction of chemistry into astronomy is relatively recent and can be dated back to
about half a century ago, when molecules were discovered in space. In the 1930s it was …